[gambiting]

So I don't know which one you have, but my mum bought herself the S9+ for christmas and wow, we were actually betting that it will fail as she lives in a huge house with a relatively complex layout(the living room has a circular shape with multiple entrances and central staircase) but nope, the robot deals with all of it fine. It takes longer than the 2 hour battery life to clean it all, but that's not a problem - it goes back to the base, empties its own bin, recharges, and then continues where it left off. It's truly amazing in terms of how well the mapping deals with that house, it shouldn't be that good.