Got my Air SyncHD in the mail yesterday and so far, I am QUITE impressed.
AVR Receiver (1 HDMI output) > Air SyncHD > TV (wired) and projector (wireless)
So far, the performance is quite impressive. The receiver is only about 15 feet from the transmitter, but I haven't had any problems with 1080p signals whatsoever. The transmitter and receiver synced up automatically with no intervention on my part at all.
Previously, I was using HDMI>ethernet baluns to get my video signal to the projector at the back of the room via flat ethernet cables which ran under the carpet before being converted back to HDMI again to feed the projector. While this setup worked well when directly connected to my blu-ray player, it was always very finicky when using my receiver for video switching. The Air SyncHD has been perfect so far in the day that I've had it with no issues to report. I do wish the HDMI handshakes were a little quicker (much longer times than a direct connection which is quite annoying on Blu-Ray discs which often require multiple handshakes during previews/menu/feature), but c'est la vie.
Excellent job on this product brite-View - especially at this price point! I paid the same price (almost to the dollar) for my HDMI>ethernet baluns 1.5 years ago!