BIG CAT's on BIG Wilsons

Anyone experience any of the larger CAT amps, like JL3 Signatures on Wilsons, i.e. Maxx2's, etc? What was it like?

Particularly concerned about having a musical experience, especially at the top end.

BTW, how is CAT's customer service. It seems to be strange they do not have a website yet and have heard mixed things. Anyone care to share the experience? Is the sound good enough to foregoe these issues????

TIA