Lots of clicking from the side brushes, I don't quite understand what that is. The filter is a bit thicker but that doesn't matter, they seem to work fine. The side brush isn't as durable as the brand name, after the first application it wears/falls off and the annoying clicking doesn't seem to damage my 960 and I think if I run it when I'm not at home I have you don't have to listen to won. Just keep in mind that if you REALLY plan to run your robot at home, you will hear the metronome click…