Much the same story with me as K_Tech indicated above. I was following the thread for all told a couple months with an itchy trigger finger to order one, but the problems with order and assembly timing gave me cause for concern.
Then when orders started arriving with wonky 510 threading, unreliable rocker switch assemblies, some various issues with top caps, etc, it seemed as though they were running into some new company startup pains, and the rep basically confirmed that. They are standing behind their product and are fixing the problematic ones, but unlike some of the really forgiving folks who've laid out the coin for the device, I couldn't justify the purchase where I couldn't be completely confident that I'd get a device with perfect 510 threading, or a 510 only top cap that did not allow air/juice into the device.
Basically, when all is said and done this is a $300 purchase after tax, add-ons, and shipping... And that's too much of a financial gamble with the list of problems multiple people have been dealing with IMHO.
When the futura is bang-on, then all indications are that it is a stellar device, but the uncertainty in what you will get at this moment with the qa issues is something any new purchaser will have to consider.