I just got mine today(authentic) and I'm in love. Here's the review I left on Fasttech.
"This RTA is all it claims. Easy to build and wicks like a champ. I just got it in today, broke it down and gave it a cleaning even though it had no signs of machine oil whatsoever. I used the enclosed coils(rare for me)that appear to be 26 gauge wrapped at 2.5mm and reading .28 Ohms once installed and had no issue with them fitting inside the chimney. The wicking is not an issue as long as you do a little research. My very first build on it and not one dry hit or spitting while chain vaping. All the threading is like butter. This is a very high quality and well engineered RTA. My hat's off to EHpro for creating a beautiful, high preforming, easy to use and service RTA. If your on the fence, get off it and order one. It's worth every penny."