Very well recommended.
Massive upgrade from standard 360 controller. Two mappable buttons are fantastic for FPS, I personally have one mapped to melee and one to crouch (MW3) for quick access to these functions ingame. The adjustable analogue sticks are brilliant also, I can see them being useful in many games (driving would be interesting), I personally use them for even more controllability on top of using a control freakz analogue stick extender good if you run around a lot in your shooters. Somebody sitting at the back could equally adjust them the other way. The build quality is vastly superior tol that of the standard controller and feels so, it just lacks weight as it's wired. Cable length is immense so I tied mine up with a cable tie. The addition of light up buttons is nice in the dark also! Directional buttons are individual so avoid the awful problems of the old standard controller.