Anybody have any feedback on this mod in temp mode. I have watched some reviews but they all seem to be first look type reviews. My local shop has these in stock so thinking of picking one up for work. I ordered an IPV D2 but the carrier seems to have lost it a few weeks ago so I am not holding my breath
As a matter of disclosure, this is the first Sub/TC mod I've owned. I purchased the kit with the Melo 2 tank and the 0.3 Kanthal, 0.5 Ti and 0.15 Ni coils included.
First, the really bad thing is that you have to read the excruciatingly small-print manual to learn the functions to use the TC aspect effectively. (I had found a PDF version of the manual but can't recall which site I pulled it from; the PDF is much easier to read for us old-ish folks who need readers to see.)
Once you learn that you need to lock the coil resistance for TC mode to work properly, I'd say it works very well. Locking the coil resistance is crucial - it's a nasty experience if you don't. Trust me on this. 'Nuff said.

I'm running the Ti coil right now (0.46ohms) with with an 85VG/15PG juice at 53.5w @ 530F in the Melo 2 with the airflow about 75% open and it delivers a nice warmish vape with good flavor and cloud. I have yet to try the Ni coil, but that's going to go in soon so I can evaluate its performance. Currently my local vendor only carries the Ni coils, so I want to run the Ti coil until it gives up the ghost and see what the coil life is. I'm about 7 days in on it right now and it's still performing well. I'll have to factor in my abuse of the Ti coil when I first started using it in TC mode by not having the resistance locked in.. I think a coil life of two weeks is not unreasonable to expect for the Ti coil at this point.
The unit defaults to 60w when you use TC mode the first time and that's pushing the unit IMHO. At 60w, the unit struggles to maintain the temperature mark and will "surge" for the first few seconds then settle down to a mostly-consistent draw. I'd attribute this to the TC module having a hard time at full wattage trying to hit and maintain the desired temp. Dropping the wattage down to the 50w range evens it out and makes for a much more consistent draw and vape. There's a small lag of perhaps one second on your first hit at the lower wattages until the coil comes up to temp, but I think that's tolerable given the operation characteristic at the full 60w setting. Follow-up hits once the coil has some heat in it are quick to hit temp and are nice and consistent.
In comparison to when I was using the 0.3 Kanthal coil (same juice @ ~30w) the Temp Control experience is significantly better in my opinion. Concurrent hits on the 0.3 Kanthal got the unit hot, even at 30w, and would make for burnt hits. In TC mode with the wattage adjusted down I have yet to get a burnt hit even when taking five or six consecutive hits from it.