As above. Black hole certainly masks minor swirls and scratches. I've only used it on bodywork, not wheels, but found it to be reasonably durable when topped off with decent wax. Why not try it and apply 2/3 coats of PB wheel sealant on top, see how it goes.
I switched to wheel woollies a while ago and much better and kinder on my Glendales than other wheel brushes. Bought the set of 3 and find them all useful, the very small one is great for getting into the holes on the honeycomb grill.