That poll you linked only has 57 votes so it actually has 45 less votes than this current poll has and we need 200 to even get Massdrop's attention. Also it's about 3 months old.
I also want to add that I own an Underdog and it's an excellent vape, I couldn't be happier with it. Power and beauty all in one product and the customer service is top notch.
I've only heard great things, so it's got my vote. Also, if you haven't already, be sure to hit the request button on the last time it dropped: https://www.massdrop.com/buy/e-nano-vape