Setup was not the friendliest as this guy has to complete an entire house cleaning before map is saved to make edits to map but once that is done it is great. We go in the app to mark off areas we dont want cleaned or spot clean the kitchen, really nice robot so far. Every once in a while he will get lost and require moving or resetting map but it is not often. I have no other robot to compare to but feature wise cant beat this for price. Oh, and amazing the dirt and cat hair it gets up even when i think floor is clean.

It does a grat job (for a robotic) & keeps the dog hair under control. I had trouble keeping up with vacuuming since my dog thoght he should attack. Now I can vacuum regularly. It picks up dirt, sand, dog hair (& my hair) with ease. Love that you can schedule selected days instead of just every day. The mapping feature is great letting you see what has been done while its working.

I upgraded from a Deebot 79S, and was excited to have a machine that actually navigated the house efficiently. Loved the mapping system and the fact that you can schedule different rooms to clean at different times. However, it would not go over the carpet thresholds from a hard floor, which makes it useless to us. The 79S never had issues and easily went from room to room. When I called customer service, they said that the 900 is a much heavier robot, which is causing the problem of not being able to navigate over a lot of carpet edges, even though the other one had no issues. I also had a problem with it not going under the bed because the metal bed frame is a darker gray (the 79S never had an issue with that either). It just stops and turns around, even though there is plenty of clearance. The suggestion was to cover the entire bed frame with white tape. No thanks - I returned it.

I had no problem with the first map but then I updated the app and had to remap and the machine was confused then. I removed and connected it again and works well

Does a good job. I've had for a year and half now, my only complaint is if your internet doesn't support 2.4 GHz the app will not work with the vacuum.