Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Griffin Rocks!!!

This powermate is awesome the brushed aluminum look is really cool. I also like that when your computer goes to sleep the blue light pulses. It is a bit [costly] but its worth it. I use a Mac and boy is it made for a Mac. ... If you use a mac and you're looking for something a bit useful bt mostly just looks awesome with your imac or new G5. This is your product!!!