I've got the 1500 on my wish list....for my next room.
The two years? or so that I've owned my 1000 it's performed flawlessly. The triggers never failed and after all the moving room,changing cables, etc it still looks and feel like new. I'd pick up another one in a heartbeat if I had the cash.
It's never heated up either, never more than warm to the touch.
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Haven't had a summer this nice in a long time.