immagikman - It depends what you're looking to do. Do you want to seamlessly control a secondary PC next to you while playing games? You can do that. I have MP installed on both work PC's and my home PC's. My home PC's are gaming rigs, 1 strictly so.
janktron - If you're using KVM to play on another PC, why not just play on that PC? Even tweaking the settings to obtain the fastest speed, you may be hindered by your own network equipment. Did you know MP was made so our founder could box in WoW? That was with seamless, as far as I know, but it was born out of gaming. And furthermore, speaking of hot keys to switch PC's, in seamless you can do that. From what Sean said in your ticket, answered the day after you sent it in, alt+tab was an option, though you said it didn't work for you. That sounds like it requires more troubleshooting but that it isn't app specific. You can ask for a refund instead of a charge back when we both know it's technical, not that you didn't get the product you wanted, you wanted the product to be more than it was. I'm sure Sean will be happy to refund you since you're not satisfied and don't wish to troubleshoot. Let him know if the ticket how you'd like to continue.