GPGT!
Bottom cleanliness condition after 3 weeks and almost 20 cycles. Got 2 females, 3 males, and 2 cats at home, so there is plenty of long hair and fur around. I have not done anything to clean the bottom before taking these photos
Main roller and side brushes very very clean, no hair or fur at all, just a bit of dust on the main brush.
Mopping pads slight stains near middle.
Some fur on the wheel crevice, but not entangled, easily pulled out.
Some fur, short hair and dust splattered onto the enclosure of the main roller. Dried and stuck on quite firmly, need to use damp tissue to wipe off.