The koopor vapes great. So far, testing with commercial Ni200 coils, it's slaying my rDna and SX mini. It just seems to give a more consistent pulse-free smooth vape and with the TCR and initial ohm reading override, one can really fine tune the performance to your liking...once you get the hang of it (The initial settings can be a bit low or high depending on what TC build you're using, using the TCR setting will sort this out). The form, the heavier weight, and the skin feels good.
The mod has it's issues though:
1) The biggest problem for me is that the 5xClick locking only works till the mod goes to sleep. After a while, when you fire it while it's in sleep, it wakes up and can fire without 5xClick unlocking it, Not cool. This should be Nr1 on the firmware upgrade list (Physical switching the mod off via the menu works fine)
2) Power hungry and no on-board charger. Goes through batteries alot quicker than my other mods. This is compounded by the fact that there is no on-board charging, so one cannot do USB top-ups during the day, so you're having to keep removing the skin and replace batteries throughout the day. Because of this I don't use this mod for travelling and use it as an extra house box without the skin for ease of use. The firmware upgrades better be epic to compensate for sacrificing the on-board charging.
Some minor Aesthetic irritations:
1) @#$%#@%ing atty overhang on the curve!!! I wish China would stop this feature.
2) Button rattle, even with the skin on
3) The roundabout way of setting the wattage for TC via wattage mode
Other than that, everything else is do-able.
To summarize...great little performer, if you don't mind a few quirks