I agree on the 'reliability' issue with Sony amps. If you are looking to push interior speakers only I would say go for it. But (and this is a BIG but) if you are looking to run subs... Sony amps will clip and heat up and cut off constantly. I was highly disappointed with the performance of a 'X-plod' amp I purchased and hooked up to 2 RF Punch 12's.
I have heard a system that has a 4 channel Sony amp running the interiors. Result: Nice Clean sound.
