I really wanted to love this vaccum, but after a month of giving it a try, I'll have to return it. I previously owned a Roomba 650 for about a year before swapping it for this, and I'll be returning to the Roomba for the following reasons: Mopping: - the mop abilities of bobsweep was the reason I switched, so when I experienced inconsistent functionality, that was a dealbreaker. the mop, at times, would go on this mode where the motor wasn't really running as normal, and the machine hardly moved. i thought maybe it goes through spurts of this and cleaning, but when I returned an hour later, my bathroom floor was not mopped. I fussed with the settings multiple times, turning the machine off/on, still with no luck of getting it to run properly. - when the mop would work, i would find myself having to rinse out and re-soap the attachment multiple times per session. otherwise, you're mopping a large area with a barely damp, dirty cloth attachment. i also found myself blocking off portions of my kitchen so that it would focus on mopping in those areas at a time, instead of zooming a little bit everywhere, since the water would dry out quickly. - the mop does NOT clean the perimeter of a room, so I still have to go in with a washcloth and clean the corners and edges of the bathroom myself Overall, I found the mopping functionality to require too much effort on my part, so much that it would have been quicker to mop the conventional way. Vaccuming: - bob gets stuck on the railings of my closets sliding doors. i have three of these in my apartment, so on any given day, it's likely that bob will get stuck before he can complete his cleaning cycle. roomba never got stuck on these. - i tried using the device to block bob from entering an area, but what good is this if I have to manually turn it on and it shuts off in 3 hours? i like to schedule my vacuum to run when I'm not home, which I had no problem doing with the roomba. - after about a week of usage, the vacuum will refuse to run and give me the alert 'there's something funny with my main brush'. this is because my (female) long hair gets wound around the main brush and must be manually removed. I used to do this with my Roomba maybe every 1-2 months, but the Roomba never refused even if I neglected cleaning this. Also, it was easier to clean with the Roomba, since bob's main brush requires me to use a screwdriver to remove it and Roomba's did not. - the dustbin was easier to empty in the Roomba than bob. I find myself having to stick my hands inside bob's dustbin to facilitate removing the waste, whereas hitting Roomba's dustbin against my trash bin knocked everything out easily. Maybe because bob's dustbin is deeper? Either way, I prefer not having to touch the waste. - Bob has a black round piece on the very top, making it a tiny bit taller than Roomba, meaning it does not fit underneath some of my furniture like Roomba did. This was the appeal of a robot vacuum-- that it could reach under the furniture. But to make matters worse, Bob will actually get stuck when attempting to go under this furniture. I'll often come home to an unvacuumed apartment because he got stuck a few minutes into his session. - I reached out to customer service a few weeks ago about one of my concerns and never heard back. I've heard this product has excellent customer service, but that just wasn't my experience. I'm really sad to say this vacuum did not work for me as I hoped. I had a much better experience with the Roomba (and paid less) and I will be returning to it since it was more reliable in many ways. I hope this information helps somebody who is trying to decide between the two.