Joined on 09/27/11
Defective product and still waiting

Pros: Best keyboard I ever used... for 2 weeks!
Cons: After e or 3 weeks of usage I started to notice strange things happened whenever I used my numpad. Eventually the equipment degraded to the point where hitting numpad6, at any moment, would immediately close my computer. At first I believed the problem originated from the drivers or windows as I had never heard of such a problem. After wasting my time reinstalling windows, cleaning driver installs and checking forums I got to try it on a friend's macbook where I noticed pressing numpad6 would also shut down the macbook! I opened a ticket for a replacement and sent my keyboard for repairs/replacement. It's been 2 months since I've opened my ticket now and still I don't have my keyboard.
Overall Review: Months after purchase all I got to do with my keyboard has been troubleshooting and sending emails to customer support. My trusty Logitech G510 has been in use since then. It's a shame I was looking forward to owning a superior mechanical keyboard but alas this product isn't what I was hoping it would be. I paid full price and did not get a fullly functioning product. Afterward I did not get good service from CM. I do not recommend this product nor this company.