Overall, this is a great mod. Well-made, feels great, easy menu system and looks nice to boot. The only issue is that the "smart" TC mode is less than reliable. It sometimes rejects a coil as being TC-compatible when in fact it is (and the same coil works great in TC in the manual TC mode on this mod). Other times it accepts it as TC but the output is so weak as to be un-vapable. Again, the same coil in manual TC mode on this mod performs perfectly. It does get it right sometimes and, when it does, it works well. It's not a major con since this has the usual TC mode available in the DIY submenu just like other Vaporesso mods, and has the ability to adjust both wattage under TC and TCR settings. Even with the Smart TC shortcomings I'm picking up a second one since it does everything else so very well.