Bought an Hcigar HB DNA 40 and am getting the Yihi SX Mini M when it comes out in a month or so. I'm vaping the Hcigar box now, and I'm gifting my iPV Mini to my oldest son, once he gets some batteries for it (I don't have any 25r I can spare).
So mine is getting retired, and here are my thoughts on the iPV Mini after living with it for the last 6 weeks.
I was very happy with this mod. This was my first vw device. I literally went from 4 years vaping a Silver Bullet to this. It improved my vaping dramatically. No unexpected behavior ever. Bucked in PWM mode. Spring loaded 510. Nice hand feel. In every regard I think this is a brilliant device when purchased for less than $50 (I paid $48 shipped). Zero gripes.
The only gripe I have with the iPV Mini comes from the last 24 hours of using my DNA 40 device. The SX130 in the iPV Mini is not accurate. It read my build as .5 ohm, and applied 3.7v at 28.5w. Check that on an Ohm's Law calculator, it doesn't match up. A .57 ohm build at 3.7v should be running around 24w, which is what my new box shows. Frankly, vaping this build at 20w on my DNA 40 "feels" like 28.5w on the iPV Mini. So somewhere something is off with this SX130 chip.
Inaccuracy aside, I was very happy with the performance and function of the Mini. Great mod for the money, and I'll always remember it fondly as my intro to vw vaping.