So I'm looking at the http://www.newegg.com/Product/Product.aspx?Item=N82E16823114015 as a future purchase to replace my keyboard when gaming. I play games like Skyrim, Deus Ex Human Revolution, and Chivalry. What has me most interested in this controller is the thumb stick on the side. I think it would be very useful for games like Skyrim for controlling the speed of my character when sneaking and would give me buttons that are easier to access for hot keys and such.

Does any one have this controller or one similar to it and if so would you recommend it? What are you opinions on such devices?