At SmartHomeAssistent (dot DE) you will find a detailed test that answers exactly these questions. It takes a good 1.5 hours to clean my 70m2 flat, with two smaller rooms being cleaned twice. One battery charge (I have reduced the charging to 80%) is sufficient for this, with 15-20% remaining capacity at the end.

We have been using ours for a week now. The Robi reliably recognises toys and cleans around the objects. It does a great job! We are delighted. It takes a relatively long time for such an area, the more objects there are lying around and the more complicated the layout, the longer it takes. With a longer running time, it also needs a reload.

It takes quite a long time (3h+) and has to be recharged from time to time. It reliably avoids toys and cleans around them. I think it would be faster without a lot of stuff on the floor. Even though it takes quite a long time, it cleans very cleanly. Much better than the Roborock or the Dreame.