The Revolution is a shock absoring, dust resistant case with protection for both the USB and speaker plugs. I happen to like the overall design which includes strong reinforced corners and even a spot to attach a carabiner to so you can hook your phone to your backpack.
Two nice aspects to this case are the fold out stand in the back and the fact that it has a built in screen protector. Button placement is very accurate, and screen shots were not difficult as a result. Openings for the camera and microphone are positioned properly and pose no interference with proper functionality.
Installation of this case was a little tough, but that is to be expected when you are getting the level of protection this case provides. Its a snug fit, and you must be careful when installing so as to not get fingerprints or dust between the screen and screen protector.
At the time of this writing, Amazon has this case for $16.95, which I think is a great deal for this case.
Note, I was provided with this product free for the purpose of providing my honest opinion.