I have carried a Glock 23C for duty use for 5 years, and also have a Glock 24C. I've put about 15,000 rounds through them all told.
The recoil on the 24C is almost non existant, and on the 23C it's much less "snappy". Much more controllable. As far as the issues stated above, even with "wrist on hip" drills, I have never had anything blow back into my face. Although it I'm sure it could happen. If you are engaging someone in a low light situation, the extra flash from the ports isn't going to be any more a detriment to your night vision than the muzzle flash from a non-compensated/ not ported barrel. If you're shooting at someone in the dark, you better have your flashlight on anyway. So, for the few extra bucks, I would opt for the compensated model.