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Sorry to contradict that previous poster, but i've had the green, see through version of that case for more than a year now, and it's been amazing.
Especially if you buy it from amazon.com, it's only about 34 dollars new there.

I used to have an incase for my 13" macbook (black) however I thought the speck one was much nicer. Just beware of the little tabs that hold the cases on, they break off pretty easily if you take the case off and on a couple times a week like me.

ALSO- your links seem to be to both speck cases. One clear, and one Satin Black...
 
I wish I could leave my mbp unprotected..but I cant. Black See thru satin speck case is the next best thing by far. (Other than the clean aluminum body of the mbp)
 
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