I got mine yesterday and the power management definitely has problems when set to lower voltage or wattage. Which I was expecting, so I only got it for use with my full sized nautilus, which requires higher power settings than the Davides I usually use. I tried a Davide on it out of curiosity and was definitely getting scorched flavor on the lowest settings.
The 510 connector is also a little wonky, so I'm using the Ego adapter and a beauty ring, which actually looks better than having the nautilus sitting not quite flush with the istick. This kind of negates the small size advantage.
Did you get it from the ecig.com sale last weekend?