Hello :)
I'm not sure which amp it was I used, but I tried 1 of the 18w combos out in a local music shop a few months back.
I cranked it up a bit (I was the only person in the shop) and to be honest, I wasn't that impressed by it. It sounded a little thin and lacked balls. I personally preferred a Bluesbreaker combo that they had in :)
Not much use to you I know, but it's the best I can do :)