I initially looked at getting the iStick 40W TC, then the eVic VTC Mini.
I picked up the VTC Mini since it is a much nicer looking device with a ton of features, alas the VTC has an issue with TC and we are waiting for Joyetech to issue a new firmwar or something that hopefully provides a fix.
In the meantime I picked up an IPV D2, very very impressed with this little guy, comes with a sleeve, takes an 18650 and very comfortable to hold.
I tried the iStick 40W TC and was not really impressed with it over the other two devices, the IPV D2 is a little more expensive but well worth it IMHO. Something to consider as I wasn't impressed with the iStick 60WTC review from the Vapor Trail.
He does good reviews, it's just every time I look at him, his eyes seem be going in two different directions to me.
Rip even likes both the IPV D2 and the iSictk 100W for a sub $50 TC/Non TC purchase.
Video for those that can handle the foolishness.