I actually preferred it to other mods that were similar in size, shape and price. I had a Vamo V5, but it has issues. I personally think it's a forgery, but I really can't prove it. Story for another day. Anyway, I am using an Aspire Nautilus, which my local shop recommended for sub ohm vaping. Problem is, apparently you can't sub ohm vape on a Nautilus according to other vapers I've spoken to. My experience with hardware has been pretty frustrating. I tend to take someone's word for what they say in regards to vaping, especially if they are in the business of selling the products. What tank would you recommend for sub ohm vaping for my Couplor? I like the Kangertech sub ohm tank (model fails to pop into my mind) and the Atlantis seems to get good reviews as well. Any suggestions would be very helpful and much appreciated.