Then just when you think you're content and you may be able to hold off for a while, this comes along:
http://www.smoktech.com/mod/treebox-plus-mod
It may look nice but check out the quoted TCRs for the only 3 wire types supported, they look way out!
The original had the same chip as the Kooper and that was crap, I know Smok chips have meant to have improved but I'd wait for reviews if I was you. Also see no reason why any TC mod now doesn't have adjustable TCR for all wires.
Just my thoughts.