I just had to fix my PS3 controller two days back. Every time I moved the left analog stick it would press a random button on the controller. So I'd be running forward on a game and it would press the triangle button or circle or R1 or whatever randomly. If anyone has that problem let me know, it's literally a 5 minute fix and will save you 50 bucks or however much a new controller costs.
Dark Souls 2 is awesome. It's everything I wanted out of part 2. Difficult, challenging, but generally fair and it's all about learning how to overcome the difficulty. The first boss was very easy, though.