This emulator is awesome.
I have tried it with Skies of Arcadia and PSO V2 PAL. Works perfect, always 30 FPS, totally playable.
The only problems I have seen (very small problems), are, in first place, some color key bugs, and a bit of audio cropping (maybe because of using integrated audio? lol).
But, those problems are worthless seeing how does a DC emulator run on a Radeon 9200, Pentium 4 3.06 GHZ at full speed withouth many graphic glitches
PCSX2 team, learn of nullDC!
Saludos.