I have about 15 sebo b360, of various ages, 1 is nearly 20 year old.
I find them to be a good weight (heavyish) better contact to the floor, strong and robust.
Excellent vac power, good filtration, like all keep a new bag in it.
I vac my own light coloured wool carpet with it daily, when the missus complains carpet looking dirty, teenage girls/make up etc it can look trashed, when i clean it she always says the dirty water dosn't look that bad, this is down to the sebo, pulling out all the solids etc, sometimes the water only looks slightly discoloured.
Hope this helps, BUY one.
Andrew.