I love mine.
High quality durable materials, nice settings for the back light, and the kind of key stroke and feedback/click you prefer. Multiple ways to make it sit and you can re-route the usb cable in different directions. Think it also has programmable keys and you can press 20 keys at the same time and it'll register them all.
Think I paid around $140, and I've been using it for 2 years now. Totally worth it for me, going back to typing on membrane keyboards is as bad as going from a keyboard to tapping on a touch screen.