I've been on a buying spree lately and have ended up with two of the Hana mod clones, one a 20w with internal battery and a 30w that takes the 18500, both minis. I also picked up the IPV mini and can say that I like it better than the Hana clones. I don't have the equipment or knowledge to prove it, but I don't believe that the Hana 30w truly puts out the power it says it does. I've tried different RDA's on it and other regulated mods and it feels different. I also don't like having to wait for them to turn on after not using it for a while, I want to push the button and go.
That being said I really like the size of the Hana's. I still use them with a Kayfun and Orchid clone at around 15w and they work just fine. The IPV mini is a bit bigger although it feels good in the hand.
Long story short, I would say go with an IPV mini, but the Hana's are ok for what they are.
IPV, Hana 30w, Hana 20w, full size Bic lighter
