For $29 is it really a big deal if it might have hardware issues down the road... It has some of the most accurate TC specs out there. I'm just waiting for the SS wire firmware patch.I wouldn't recommend a VTC Mini yet (I think it's a nice device), too new and may have a hardware issue pop up.
If money isn't an issue I would recommend a DNA200 with dual 18650. Or on the cheaper side an SXK Zero v3.
Get em here:
http://us.efun.top/joyetech-evic-vtc-mini-express-kit.html