I've been using powerkeys for about 3 months now and it is definitely worth the money. I barely have to use the mouse! Only drawback is I have to take my computer keyboard with me when I work on other systems as the overlay actually sticks to your keyboard. By the way I've been trying out the new Sampling Reverb from Sony. It really does sound quite amazing. The wet and dry sound become one, it's incredibly natural sounding. I don't want to give it back. The bad part is it costs $16,000 Australian. Ouch! regards Michael