I've had this keyboard (brown switches) for nearly 3 years and I'm a heavy daily user. The FC900RBT is seriously the best PC peripheral investment I've ever made. After millions and millions of keystrokes it shows no signs of wear, response changes, or performance issues. The quality and value continue to exceed my expectations. For usage reference, I am in the field of personal branding and career coaching. I often use the keyboard 8-12 hours per day.

3 months old, left arrow key stopped working, and Ive had a persistent but intermittent key down behaviour, randomly it likes to pretend I've held down one of the arrow keys (99% of the time its the right arrow key) its not a sticky key, that stays stuck, no you can type a random sentence and bang, it goes off and pretends you held down the right arrow key. very weird considering my FC750 has been bomb proof, this FC900 is not.