The compression quality is typically rather poor (meaning you get artifacts). The graphical quality as of a few months ago was also poor in comparison to your own rig. It's also got latency issues. They get 80ms or higher on average. So, for fast-paced gameplay, that can be an issue. Also, the stream is only 720p, not 1080p or higher. It's amazing for what it does, and I'm sure that some budget-restricted gamers/families use it, but it's not a replacement for powerful hardware 2-3 feet away from you.