Ive just got the impact clear one, but the back of the case is rather frosted than what its name implies.
I was after something with some grip as I feel im always about to drop my phone. This case doesn't give me much confidence either. Its too slippery for my liking. For looks, I would say the Evo Check looks much better! But its more bulkier than the slim Impact Clear,
If you are after a similar clear case i would highly recommend the Spigen Ultra Hybrid Clear - looks and feels awesome and does add alot of grip!
I can add photos of both at request.
Just for reference, I have the Platinum Gold S7