Sure, it has it's problems and some of them can be really quite annoying. Like a glitch where you can become wanted in one city but even after paying off the guards they're still hostile. There's also the annoying old English accent the main character has and the completely broken multiplayer. There's a few more things that people complain about with that game as well, but if you have the ability to look past them, there's a really great game to be found.
I can see why people are so hostile towards the game, but I don't think it's anywhere near as bad as people make out. I got so hooked on that game that I even persevered through the final, really tough, boss battle. One thing that I thought was particularly good about the game was it's map. It was so varied and the creatures were pretty interesting.
If you want a fairly lengthy RPG and can look past some flaws, you can probably pick this up really cheap.