We've been running one for a couple years.
Just a 0-100 'power' control, no actual thermostat or temp readout--may be a deal breaker if you do fancy stuff a lot.
Only other issue I've had is having to beat it up to adjust the height/level--it seems like the paint wants to stick after it heats up and cools down a few hundred times.
When I've flipped the head on, the choppers make it tilt up or down a bit, but barely change how it sits. The way the air is plumbed, one set is always up and one is always down anyway, unless you have a rather unorthodox Gauntlet, and the (sticky paint) adjustment is there to compensate for however it sits on your press.
Considering the prices, I'd have to have a very good reason to buy a fancier flash after running this one. I have to admit, occasionally I miss the old Omni style with a real thermostat (mostly with fleece, or blends) but it does a great job for the money.