eBay Amp 650W AB Class - Someone Try It ?

Hi
I want To Know If Someone Try It yet
There is No Much Info About It on The Internet & eBay
It looks Like Pretty Good
although there are more same types with lower ratings looks the same (except there are less FETs) from the only Seller

Mono 650 Watts RMS 8 Ohm Bi Polar Class AB Audio Power Amplifier Board Kit DIY | eBay

thank you