Summary: I've own this keyboard for about four months now and I can say this is an excellent product, it's my first mechanical keyboard so I can't really compare it with other ones but it's really a huge difference from normal membrane keyboards. It takes a bit to get used to and you will find yourself misclicking some keys at first, but you'll get used to it quickly especially if you only use that keyboard.
Summary: I love the way this keyboard types. It really is fantastic. The Cherry MX Brown switches are a dream. However, the way it uses usb is finicky at best. It randomly stops working for me, even with my motherboard that has USB ports that put out extra power (the support person at CM said that the keyboard works better with a powered USB hub since it draws a little more power than most). Don't get this keyboard. It's great when it works, but it's not worth the hassle.
Summary: This is my first mechanical keyboard, so I don't have a lot of comparisons, but this keyboard's great! It's tactile, lights up partially in this really cool red, and makes gaming a lot more precise for me. It's also full sized, which I enjoy. I hate half sized keyboards. And you can easily manage its cable, which is really good quality. Overall, a great product.
Summary: Heavy with great build quality, this keyboard does not feel like a toy. I do find that the sharp edges of the keys sometimes confuse my hand positioning, so it would be nice to have full back lighting as an option but this is hardly a big issue for a high quality keyboard at this price.
Summary: Keys are very responsive and it arrived very quickly, the keyboard makes a little bit more noise than some keyboards, but it's not TOO loud like other or mechanical keyboards. The price was right and it has worked very well so far.
Summary: Let me start by saying that I did end up returning this keyboard after 2 weeks of use, since it made my left hand really uncomfortable after hours of constant gaming, but don't let this deter you from purchasing this keyboard. Everyone is different. I'm back to using my rubber dome Microsoft Sidewinder X4, which is at least comfortable to me. The CM Storm QuickFire Pro has a high quality.