Hard cover protector. anyone?

[Koz60]

Has anyone used one of these Jelli protectors?

http://stores.ebay.ca/Momosworld/_i.html?_nkw=jelli+macbook+air+13"&submit=Search&_sid=20864354

Was looking at a this one but no longer carrying it in Smoke..

http://www.ebay.ca/itm/Candy-Shell-...d-/190684180631?ssPageName=ADME:X:RTQ:CA:1123

If not please let me know which cover you are using.

Thanks.
Steve