I have been trying some random games to see how it works.
Devil May Cry 3 Special Edition: Suffers from a poor framerate on my computer, it's playable but this game really wants an autohold feature. I tried some jump canceled Helm Splitters and got a few without problems.
Tales of Destiny Director's Cut: Loads and plays fine, but I get a black screen after the first cutscene on Stan's side. On Lion's side I don't see problems so far, even got a random battle on the world map(Majin-Ken!). Just some framerate issues, maybe I need a real video card.
Guilty Gear Accent Core Plus: Shows the ArcSystem Works logo and won't advance any further.
Guilty Gear Isuka: Similar to Accent Core, it gets stuck on the Sammy logo and freezes.
Arcana Heart: Doesn't work.
Melty Blood Act Cadenza: I really love 2D fighters. Doesn't work.
I have been trying to convert regular PSV, CBS or MAX saves obtained from gamefaqs to the PS2 format the emulator requires, there's a guide here:
http://www.ngemu.com/forums/pcsx2-forum/64482-gamefaq-saves-pcsx2-memorycards.html
Some documentation for the TAS features would be appreciated, I found most of them by accident. :P
Thank you.