It can't read official US GD rom games.
Boot discs like AR, GS, and DC-X do not work (crashes) so you can't bypass region lock to boot games mentioned above... !?
Some indie Games (NG Dev games for example) work fine. Only indie game tested that doesn't work at the moment is Sturmwind. It crashes in the Memory card screen... !?
Backups work. Capcom Fighting Collection tested and plays fine.
Official JPN GD software has yet to be tested. But I'm willing to bet it'll work
Hang in there folks