I feel compelled to write a good review after consulting reviews prior to my purchase and deciding to proceed despite the large number of negative reviews. I remember seeing reviews about difficult in-app setup and some stuff about it not tracking the house properly. Well my experience has been fantastic lol. I got the one that mops and vacuums and I guess I did come in with low expectations but jeez. It's worked exactly as advertised and set up legit took me like 1 minute of manual work. Then let the machine do a scan of my house (which it created a perfect outline of all rooms and doorways). Idk maybe I just got lucky with a good device but I personally would highly recommend this brand.