Now that I got my GCW back from repair, I've been catching up on the releases. WOW! pscx4all is amazing! (yes, I haven't had my GCW for that long).
I was able to try out a handful of games:
Gradius Gaiden *
Raiden Project *
Raiden DX *
*For Gradius Gaiden, the left side of the screen issue stated in the compatibility list is present, but it doesn't make the game unplayable. The screen is just slightly shifted over a bit, making the display un-centered.
*Raiden Project was unplayable for me. I was able to get it running to the gameplay using the SCPH-7000 bios, but in-game controls didn't work from there.
*Raiden DX was playable, but had graphic glitches on the right side of the screen during regular display modes. When I changed it to the vertical "arcade" mode, it played perfectly. But it's hard to play vertical orientation on this device.
Everything else so far has run impeccably. Thank you!