My $0.02 worth: sigelei 20 watt. Got one several days ago and am blown away! A Provari would not be my choice. I have sigelei Zmax V5's and a 20 watt. Then for (heaven help me) backup, some C-Twists and a couple of V2's. The tilt actuated change of wattage is no big deal. Even those unable to program the clocks on their VCRs will learn it easily. You can A) Turn it on and off; and B) Raise or lower the wattage. It's rugged, and stainless. My wife had a SID and it turned black wherever there were threads, and didn't clean up nicely like any stainless mod should. Since I'm my wife's "mechanic", I vote for stainless always. Also, if you already use devices that use 18490's, 18650's, you probably have the chargers and extra batteries. I want a Seven-22, but don't use that type of battery and would have to get those and a compatible charger.
I put a Protank Aero with a 2.5 ohm coil in it on the Sigelei 20 watt and produced enough "fog" I could hire myself out on Halloween for special effects!
I put a Protank Aero with a 2.5 ohm coil in it on the Sigelei 20 watt and produced enough "fog" I could hire myself out on Halloween for special effects!