I was never a big fan either. We got free tickets through Walmart (they won't pay their employees, but they'll give them movie tickets--how quaint!)
It was good, though. I was impressed by the fighting. They didn't just try to make kung-fu in super speed, it felt right--like you'd see in the cartoons--also impressed that they didn't stoop to bullet time to emphasize how fast they were moving. It really appeared that these people were supposed to be "superhuman."
Only thing I didn't really like was the way they stylized the Kryptonian technology and the appearance of their world. Kind of a petty quabble, but it wasn't very imaginative and was too much brown and grey. Krypton has always been painted as a very, very colorful place.