Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

[EX Q]: I installed this on a imac 21.5" as I wanted quicker response, start-up ect. This drive delivers an improvement in all areas of functionality. No cons at all. For those whom wish to install this drive go here: https://www.ifixit.com/Device/iMac_Intel ,then select the imac you have! Follow the guide!
[EX A]: Positive Review

[EX Q]: This is a great router. It replaced a dying linksys WRTG54g router. It's stable, rock solid, fast wireless, and has great signal. I should have bought this a long time ago.
[EX A]: Positive Review

[EX Q]: To the credit of Steelseries, the QCK mousepad was rolled up well in its packaging and flattened smoothly within hours of use, so I do not understand some people's complaints about this being wrinkly and hard to flatten. HOWEVER, the biggest annoyance for me is that this mouse STINKS TERRIBLY! I tried looking all over to determine the materials used in this mousepad since I was convinced that whatever material it had, could not be healthy long run. I found out that this contained neoprene. I don't know if this can be carcinogenic but research online shows that it can cause skin irritations and headaches. Well, I certainly do have a headache from using this less than a day. Does anyone else face the same problem? I'm surprised this hasn't bothered other people enough to mention extensively in the reviews. I will let it air out for a couple more days to see how it fares. I may have to consider glass mousepads like the Steelseries I-2.
[EX A]:
Negative Review