Though I have the hardware to support Airplay mirroring, I haven't been too impressed by its performance. I don't believe I am doing anything wrong, but my experiences have not matched those of the early reviewers I have read. First of all, there is noticeable lag. The iTunes visualizer struggles to produce fluid motion, and there is a half second delay in input from my trackpad. My network is wireless N and everything connected has full bars. Perhaps more frustrating are my resolution issues. I am running an i5 mid 2011 mini and an ATV3. My monitor's native resolution is 1680x1050, and the TV I have the ATV hooked to is a 55" 1080p LED Samsung. When I enable Airplay on the mini, I have the option to match the mini's resolution or the ATV's resolution, and there is also the scaling option. No permutation I have found will allow me to select 1080p, however. The most logical option, selecting the ATV resolution, seems even lower than my monitor's native resolution (720P? it does not specify). The only times I get specific output resolutions to choose from are when I select match monitor, but then it maxes out at 1680x1050. It seems my monitor is limiting what the mini can output to the ATV, but that doesn't make much sense to me, and I could swear I saw someone running 1080p from a macbook with a much lower native resolution than 1080P. And when I unplug the monitor it (literally) freaks out, flashes green garbled screen on the ATV until I plug it back in. So two main issues I suppose. Any insight would be great. As I said I am a bit disappointed thus far, I thought I had everything I needed besides Mountain Lion to be able to cease moving my mini back and forth between my TV and monitor, but alas. Thanks!