My first experience with a vacuum robot was Bissell. No bag, no station to empty and a separate mop head could be inserted instead of the dust bin. It lasted a few months and a plastic sprocket broke. They offered me 25% off on a new one, ya right. Next was a Roomba j7+, no mop but emptying station. It lasted a bit over a year and I spent more time babysitting the darn thing than that it was working. Daily cleaning of sensors, a horrible map solution and ignoring barriers. It had no brain so to speak and had to be rescued all the time. Got stuck underneath the couch every day but kept trying. Remap the floor every couple of months as it remembered a dog being in the way and assumed the dog was going to lay there forever.On to the L40. It mapped our 1900sf main floor in less than 10 minutes. No way, impossible? It appears not. It knows it’s supposed to ignore carpet. There’s a little learning curve, or more accurately it takes a little experimenting with settings. We have 3 German Shedders, and I increased suction power a few times to end up on “Max” (there’s a Max+ if needed). Since Jan 24 I’m still on my first bag (it’s 2/19 today!), how does all that dog hair even fit in that small bag? Based on previous experience with the Bissell, mopping was not a consideration or even planned. Ran it for giggles and was not impressed. But again, there are options for how much water you use and I played with it for a few days to end up on “28”. I have an unusual life which resulted in my floor not having been mopped in 6+ months. I know, not ideal (to put it mildly). The result was meh. It was doping “something” but not like a mop and a pale kind of job. I know I should have done that to start with a clean floor. But here’s the funny part. After a few weeks my floor looks clean. Really clean. In addition the water in the dirty water tank is getting (way) less dirty. In about a month it told me twice or so to wipe off sensors, but other than that our Dreamba just keeps going without intervention or correction. If it lasts only a year, I’ll buy another one. It’s crazy what I put up with until this unit hit my floor. In short: Oh Dreamba, where have you been all my life?

Updated Review - This robot cleaned well and was great but then either it decided to go crazy or a software update caused it to start running into objects pretty hard. The warranty process has been a pain in the @§§. I sent my device in and then about 12 days later I they tell me my robot has multiple problems. Either I can wait two more weeks on my robot to get fixed or they can ship a refurbished device. I don’t understand why they couldn’t send a refurbished device as soon as they received mine, that’s what most companies do. 16 days in & I still haven’t received an email with a tracking number showing my refurbished device being sent to me. Communication in this process has been terrible. This kind of customer support when spending over $1000 on a robot is pathetic. I probably won’t buy another Dreame device just because the warranty process has been a nightmare.

I started buying robot vacuums back when Romba S9 was the best of the best. While I loved my S9 for raw power it lacked in many other areas I had to move on. Since then, I have had mostly Roborock vacuums. I have owned the S6, S7, and S8 and while I stayed with them mostly for the dual rollers, it seems like overnight robot vacuum evolved, and now they were moping and raising mopping pads with a camera to locate pets and all kinds of bells and whistles side mopping and on and on.I tried the Dreame X30 and while it was a great vacuum it did not seem to have the same raw power as the Roborock Q Master. The Roborock Q Master sucks at object avoidance. No matter what I did or what settings I selected it would not avoid anything. I know no robot vacuum is perfect but the Q Master is listed as being smart and has a camera in theory should help it avoid cords and socks and dogs, but it does not. I picked up the L40 Dreame on sale and have been in love since. It has the raw power like the Q Master but is way smarter. I was so tired of looking around before I ran my vacuum I would clean to clean. The L40 is so much better not only does it run like a dream but I have not had it once get stuck or get something stuck in its roller. It vacuumed under my couch and then in the app at got a notification that I might have a missing item under there, it even took a picture of it so I could decide if it was worth going after. And for the 1st time besides my Romba S9, the vacuum will come back when it is full and empty itself and keep going. I have a Beagle and she shads like crazy if I skip a day of vacuuming other vacuums would get full but keep vacuuming even though they were no longer picking anything up.The mopping is also top notch and not only does it push one mop pad out to the side but it will also wiggle to get even closer. After mopping it will clean and let you know if the water was dirty enough to mop again and then go do it. The only problem is it only does this with genius clean not customized. Also, the side brush no longer spins on the carpet by default. You have to do some trickery to get it to spin on the carpet. Which is stupid to me, I looked around and they saw this is because it's not really needed on carpet and keeps the motor from burning out. I do not agree.I would give it 5 stars but Amazon delivered it to me damaged, and will not replace the item they just want me to return it for a refund. The problem I got it on sale close to Prime Day and it is no longer on sale. So, if I returned it, I would have to pay more to buy it again. If it was a small amount like 25 bucks, I could see that, but it’s like 350. The policy does say I can get an item replaced within 30 days but they are not budging. Everything works besides the cleaning solution injection.So, if you are thinking about buying it, I would say pull the trigger. If you can buy it from someone other Than Amazon that’s even better. Since they will punish you if you happen to find a deal on their site.Update****While I could not get Amazon to do the right thing and replace the item without me returning it. Dreame support has stepped in and has been nothing but pleasant to work with. I wanna be clear the 5 stars are for Dreame and the L40. Their customer support and their vacuum have been a dream to work with it. I can not recommend them enough. If you are on the fence about buying a robot vacuum from Dreame, I would say pull the trigger. The vacuum is top-of-the-line filled with the best tech. Customer support has been fast to reply and very easy to work with. Until the X50 comes out I am staying with the L40.*********Update*********Still one of the best robot vacumes you can buy hands down and I would buy it again if the X50 was not out :) (I would love to review the X50 Dreame if you are listing) and it seems to be improving itself like it is learning, hear me out. I have two small dogs one that is afraid of its own shadow and another one who could care less about the vacuum. When I 1st got it I was cautious around both both dogs taking what seems like 1000 of pictures of them, even if they were not in the frame all the way. It would slow down if they walked in front of it, it would give them both a wide birth as if it was unsure as to how the dogs would react. Fast forward to today and I no longer get out of 100 pics of them in the app. The vacuum knows that it can get right up next to my dog who does not care and clean around her. But it knows to slow down when the other dog is laying in the middle of the floor because it knows he will get scared and move at the last minute. I swear iuts almost like it is learning and thinking.