The Straight Talk SGS2 port is based on Android 4.2.1, and should work fine as a daily driver. The developer also provides several other useful goodies in the thread, including ClockworkMod recovery, stock and AOSP modems, and the stock factory image and flashing instructions to get a clean start.
Moving on to the Galaxy Player 5 port, it’s an early release with a lot of work yet to be done to make it suitable enough for daily use. Currently Bluetooth, Camera, and the earpiece aren’t functional. You do, however, get sound through the speaker on the back. The capacitive buttons are also not working on international version, and only earphones with a built-in microphone work. The port is still work in progress, and hopefully these issues will be sorted out soon in a future release.