Uh-oh.
If you delve into pro-audio forums and ask a question like "any thoughts about the Behringer brand....?" it's generally a case of light blue touch paper and run like hell !
I certainly don't want to trigger such a debate here and will try and keep my comments to things which are generally regarded as fact rather than opinion.
With Behringer products you almost always (if not always) get very good value for money. But given that their products are normally very cheap for the spec they offer, you can draw your own conclusion as to the overall performance.
As with anything, auditioning a product before you buy is probably the best advice, or second best buy second hand and if you don't like it sell it (unlikely to find any of these power amps second hand though as they're quite new).
I would suspect that if you're into true high-end AV this amp will probably not satisfy your needs. However if you want something big and cheap to give a room shattering slam bang and not too worried about absolute fidelity then I'm sure it would be fine.
Just my 2p worth.
If you do go ahead and get one let us know how you get on with it.
Cheers,
John