The first couple of days weren't so good - it got lost and didn't clean everywhere. Then we moved the base unit in the middle of the apartment (120m2) and now it is perfect.
This is the perfect house keeper. We run it at least once a day (most weekdays even two times) it cleans long cat hairs perfectly and there is no dus on the floor.
After we switched off the gentle navigation it gets everywhere - under the sofas, the kitchen chairs, the baby chairs, etc.
It is reasonbly quiet. I code watch a movie with it running, and it cleans around the baby's room without me worrying it is going to wake it up.
The smartphone app is simple and gives you all the information you need. It even shows you a map of where the robot cleaned.
One thing I would improve is to be able to schedule more than one clean per day.