That is pretty cool... from a PC to Mac or Mac to Mac? I just picked up a NVidia Shield Console to try out Gamestream from my gaming rig in my office/game room to my 60" TV in the living room. We are cable cutters... so if it failed I could use it as another set top box. I Gamestreamed The Witcher 3, Tomb Raider 2013, Battlefield 4 and Batman on my 60" TV, and games look amazing. I don't see or feel any lag in gameplay. Even the NVidia's subscription (currently free) GRID game stream is pretty good. Not perfect, but games are playable. Streaming games from one PC to another PC/Mac... or TV in another room is pretty cool. Allows me to game in peace away from my wife and kids.