I've only played through their front ported 4x10 combo, and it sounded like arse. So much mud, and if you dialed it out you became totally inaudible and weak.
On the other hand a bass player put his behringer head through my markbass cab and it sounded pretty good.
Seems to be a bit of a marmite situation, but it'd be alright for the money. I'd be more inclined to wait til something suitable comes up second hand though, you could probably get a decent ashdown combo for under £200