I'm not too keen on the aspect crystals being needed for some parts, I've never been too big a fan of those, although that aside, it's been really fun so far. The ability to replay the story for new achievements and loot seems interesting too, although when I first discovered it I was a little dismayed at all the new achievements that I wished I knew about beforehand. (That, and I had just finished doing one part of the story 3 times in a row due to my not being on the same stage as my party members and whatnot, I was a little replayed out at the time) After some consideration though, it is kind of a nice feature, and once I get time again, I plan on going for those achievements and the loot they promise. I hope I get something good!