I bought these thru Dragonfire Racing (pretty killer forum discount by the way), and had them within a few days.
They were extremely easy to mount up, took me about 1.5 hrs start to finish. For the fronts, I didn't even have to take the wheels off! The rears were a little tougher, but the dump bed made it a lot easier to work on. I went with replacement shocks over a long travel because of the riding I do - mostly trails.
I haven't given them a thorough thrashing yet, but will soon. First impression is that they are much softer than the stockers. I think the stockers were designed for more utility use - and to me they had a very stiff ride, my back told me so! The difference was noticeable by just pushing the front suspension down manually - with the factory shocks it would go down about 1 inch in the front, and the Fox's are probably closer to 2 inches. I have a feeling these are going to be awesome for trail use. They seem to float over bumps. I have not adjusted them at all yet, but they do have LSC and HSC settings - I believe 24 setting for each! Right now they are set in the middle and are a huge improvement over the factory shocks. As they came, the front ride height went down by about a 1/2 inch and rear was the same as stock. Right now, it still sits pretty level, but I will probably play with this as well.
As far as body roll, there is more with the Fox 2.0's... I think some adjusting should tighten that up, without diminishing the ride quality. So far I have only tested that on the street, but it does cause the Teryx to lean a little more when cutting the wheels back and forth.
Front Stockers and the Fox 2.0
Rear Stockers and the Fox 2.0