Well, Space Channel 5 is a lousy port.
Fixed resolutions (max res is 1280x720), config settings not working (you need to create a folder, copy and modify the ini manually), no v-sync (massive screen tearing), no antialiasing (didn't work with nvidia control panel either) and apparently there are missing sound data if you choose the japanese voices.
The game itself works fine. The audio sync is perfect so no delays. Wireless 360 joystick works fine too (though, the config program tells me that there are no joysticks connected).
I don't regret buying it, as I said the game itself works fine. I just hope to see a community patch or something in the future =/