I had an Ashdown head for about 2 weeks when the transformer on my Ampeg went on the fritz and needed replacing. The crappy buttons all fell apart and it kept blowing internal fuses even before leaving the house to gig it.
On the plus side, the sound was great, and the DI out was really clean. The amp itself (I forget which model) was more than capable of gigging with a loud drummer and a guitarist, but given the issues I'd had prior to taking it out of the house I didn't have any confidence in its ability to withstand the regular pummellings of regular gigging, so I returned it. I really wanted to like it though.