Just got one of these the other day and I really am liking it a lot. There are a few issues but every mod has some.
The ohms checker is inconsistent. My coil is 1.4 ohms but the check bounces around from 1.2 to 1.5 sometimes.
Because these are made in China (at least I assume they are) the quality control is not stellar... mine had a sharp edge on the pin that holds the top piece in. Also the top piece was slightly leaning towards the back... looks like this is from it not being properly seated before they pound the pin in, but it is barely noticeable. And the "+" button happens to sit a bit taller then the "-" button, this may be intentional but I am thinking is is not.
One last issue that I can think of (well it is really 2 issues in one) is the charge light and the lights in general. Firstly the lights are far too bright... this is going to be an issue driving at night seeing hows it is illegal to have anything that can distract other drivers from your car. Secondly my charge light takes forever to turn off, literally I have to leave it over night (beyond 3 hours from what I have seen)... I would guess this is becasue they set the light shut off at a high voltage like 4.19v/4.20v. The issue with this is as most batteries age they do not fully charge to that amount anymore (dropping .1 every so often).
But these are all very minor gripes and things that could be easily fixed. Also wattage is a neat feature but one I do not need personally, I am lucky enough to have locked in my routine and always get the same results I want each time. From what I understand wattage is good for people who are constantly trying new things or switching atomizers of different resistances. Once the MVP can check ohms i will probably snag one of those as well.
Here she is with my homemade genesis on it and a thread ring that I customized to be a little taller: