@sbc83, out of the 2 you're looking at the Vaporesso GEN would be the better choice.
And if you wish to try TC, it will be able to do so with some decent level of accuracy at a decent price point and not an excessive one.
I and others still have older Vaporesso mods at one side in our vape museums that still work like the day you got them, they just gain a little character cosmetically speaking.
And
@Letitia, TC has nothing to do with chipset efficiency. Because when TC is implemented properly, in theory you should get longer runtime.
As when the coil reaches temperature the voltage is throttled to keep it within the set temperature range.