They take tweaking, but all in all - *shock* - I think they're nice amps. I don't think it's a secret anymore that I like my solid-state Crate more than things I tried up to twice its price and all I've found is that they have their own little happy place as far as sound goes - they're not going to give you Marshall or Mesa or Bogner or Peavey or Engl sounds out of the box but they can do some badass things if you know how to tinker with them. Those clips don't sound bad, but they have that 'cheap speaker' thing going on.
Drop that Behringer cab and get something decent - hell, I'd almost bet that a V30-loaded 2x12 from Avatar could beat that thing in usable volume.
Jeff