I've owned mine for about four months now. The wireless HD feature was helpful while I waited to mount the projector to the ceiling. Rather than run wires to the projector sitting on a table, I could route the signal to the projector wirelessly.
But now that I'm ready to mount the projector in the ceiling, I'm wondering whether the wireless feature was worth an extra $300. I'm definitely going to hard wire my inputs to the mounted projector. Everytime I turn on the projector, I have to get up and walk over to the wireless HD transmitter, flip it off and then back on to get the wireless HD to work. I leave the transmitter on all the time, but after turning on the projector, I have to get up and and toggle the switch to make the wireless HD "wake up".
Hard wiring the connections will fix that, but then what will I use the wireless HD I paid $300 for ?