Bests & Worsts Reviews from Amazon

I work at a software company, and spend 9-10 hours per day pounding away on this thing. Pros: 1. I'm able to type extremely quickly on this, and it's very comfortable. 2. No wrist fatigue 3. Little to no readjustment period from traditional keyboard angles to the more ergonomic style here Cons: 1. Key strikes are very loud. They can hear me typing two offices away. 2. The letters have completely rubbed off of all letters aside from Q, W, Z and X. Good thing I'm not a "hunt and peck" typist 3. F lock is intermittent - you only realize it's off when you try to use it and get some other function popping up instead