I use my computer a LOT, sometimes 12-18 hours a day when busy with graphics work. I started getting sore between by thumb and wrist, where my hand rested on my desk, so I tried this pad. It worked GREAT at first -- but then the 'gel' pad (I think it is actually foam) started to flatten out and get hard. Now it's not any better than the desk. Good product, but it doesn't last!