(Using with an Arcos Brasil pernambuco bow on a Pietro Lombardi 502 cello with Evah Pirazzi Gold strings, around 25°C and 50% humidity.)
Provides enough bite to get all strings started cleanly with relative ease (even with my cello beginner skills, just coming from the violin), but also allows a nice, clean tone throughout the dynamic range. Very little dust, which doesn't seem prone to stick to the varnish, so it's very easy to wipe off.
Only downside is that it's just glued to the cloth. I like to have a "cap" to hold on to, like many other brands have.