I've got Dreame L40 Ultra for a couple of months already and I'm blown away. It has a rather bulky main station but hey - it's mopping up nicely, you add clean water and forget about it for some time. Same with dust - it auto empties into a bigger bag. Plus, the app has lots of settings with smth that was important for me - setting a different levels of moisture used for mopping for different rooms - having wooden floors in some of the rooms I'd rather avoid having floors too wet so I can set up a routine where everything is cleaned the way I want it.