I type on this keyboard 8 hours a day, 40 hours a week, or more. I do medical transcription, so I must have an ergonomic keyboard (will save you from carpal tunnel). I love the features on this keyboard... the ability to zoom in and out, the programmable features, the volume increase and decrease at a touch of a button, etc.
I have had no trouble with sticking keys. A lot of the letters have rubbed off the keys because I use it so much, but I don't look at the keyboard anyway.
I would really recommend this product. If you have never tried an ergonomic keyboard, it will take a little getting use to it, but I'll NEVER go back to a regular one!