I have used Pixel Exit on 2 projects including my move to 2.0. They have in my opinion the best styles on xenforo right now and they help you get the look you want without a lot of hassle.
The big difference is they support and stand by everything they do in a timely manner. This isn't an easy thing to find anymore. Even when I have some really goofy questions I get an almost instant answer from Russ helping me find what I want.
I believe Pixel Exit is the overall best group you can deal with on custom work and with styles and addons. A big 5 star perfect 10 rating from this very satisfied customer.