Yeah, this ROM will cause nothing but headaches. No offence to the dev, just putting it out there... It's extremely outdated, and was abandoned before it even reached a stable point.
If you want a stock experience, go with
Peach Sunrise, or you're always welcome to jump on the Jelly Bean bandwagon too.
CM10 and
Slimbean are super fast (much faster than
any Gingerbread ROM) and they're fairly stable too. Throw in
a decent Touchwiz theme and you'll feel right at home. Maybe even the
Galaxy S3 launcher for a more complete experience. Set the CPU speed to 368/1024 with Interactive governor, and watch your phone fly!
Keep in mind, you may run into a few little bugs here and there, but you shouldn't experience any major hiccups as-is. Once you throw in tweaks like Supercharger V6, Pimp My Rom, or flash any custom kernels... Well, at that point, you're on your own.