I was debating over purchasing this for some time, but now I have it I should have just gone for it straight away! It's difficult to describe, but when you hold it you really feel as though you have something special in your hand. The machining is absolutely flawless. I've looked so hard and not found a single bit that is anything other than perfect. Once the button is ******* on you can't even feel where it joins the body. The 2 post design for me is far superior to the 3 post and makes it so easy to build on. Want a single 24ga coil? No problem. Want a big fat dual clapton build? No problem! Hits surprisingly hard for a single 18650 mod and with the right coils will fog out a room in seconds. Love the airflow, will supply plenty of air directly to the coils. The button is superb. Can strip it right down in a flash, works smoothly and has enough resistance to only fire when you want. Comes backed up with a genuine lifetime warranty and the service from Grey Haze was impeccable!