Both TC mods I ordered arrived on consecutive days---the Dovpo TC-50 showed up in the mail yesterday, and the SnowWolf 200 came today.
I spent yesterday going through learning curve of how to operate the Dovpo mod and getting set up, building simple 28ga single Ni-200 coils for one RTA and two RDAs---a Taifun GT-T v2 (.16 ohms), a Magma (.15 ohms), and an Origen v2 (.10 ohms). By the end of the day, I was comfortably in the saddle. Now today I have two TC mods to go with the three atomizers. Next I may try my hand at a dual-coil nickel build for a Derringer dripper and perhaps a Cthulu tank. I've read many posts from TC users having trouble wrapping nickel coils because the annealed nickel is so soft, but I've encountered no problems yet.
The two TC mods are obviously different---the Dovpo is small and very light weight, with a single 18650, while the SnowWolf is large, heavy, and powered by dual 18650s (as well as being three times as expensive)---but they also share some significant similarities. Both seem solid and well-built. No button rattle on either. The user interfaces (i.e., all the different button-pushing sequences to operate them) are not entirely the same, but close, especially in the nitty-gritty of actual TC use.
Both mods work simply and effectively in temp mode. Changing temperature or wattage settings on the fly is a little easier (more intuitive) with the SnowWolf, but both have a very low fussiness quotient. I haven't yet put the SnowWolf down long enough to encounter the 5-click reactivating thing. At least with the conservative settings I'm using---420° F at 25 watts---I get no dry hits, and each PV actively regulates the wattage delivered to maintain the set temperature and shows that process on-screen.
More to the point, the vape that each provides from the respective atomizers is completely identical. If I were blindfolded and not holding the mods in my hand, I couldn't distinguish one from the other for any of the three atomizers when set to the same parameters. Both PVs supply a very smooth vape, much less aggressive than the experience to which I'm accustomed with regular power-only PVs and kanthal builds. But then, I'm not pushing any limits yet, so that may change with time and savvy.
It's way too soon to offer any judgments or opinions about with I think of temp limiting technology. After one day, both of my new PVs are essentially shiny new toys. Whether and how much they will permanently change my life as a vaper remains to be seen. It should be fun to find out, though.