I got it recently and think it's OK for the price. You see some elements of the Final Fantasy series in it (same devs) and I like the jokes somehow although the german localization sucks. Weird voices
I'm playing for 30h now and left out a lot of sidequests and still I'm only on the start of disc 3. If I'd need to compare it to other games I recently bought it's the best.
The other ones being CoD4 and Simpsons. Both not much fun in single player.