I looked at them some...there's a lot of good looking Chinese amps out there. But, at the end of it all, I went with my gut and bought the VTA ST-70 amp from Bob Latino and am thoroughly happy. Plus, he answers emails super fast, speaks English (lol), and also phone calls. By the time you spend $600 shipped, you're not far off from something else that tons of people out there own and can help you with versus having to reverse engineer the amp to troubleshoot. Just my $.02.