Just received mine today, it is a bit large and heavy but I knew that coming in. Updated firmware to 1.07 right away.I did have a little trouble finding out how to drop wattage in TC mode (4 clicks then up arrow). Blew the SS coils in the Kennedy 22 that I plan to use this with for juice tasting, the TC 200w default is way to high. But now it's working as well as my eVic-VTC mini, and only paid $8 more for this mod. Just wishing it had the VTC Mini's menu, this device resembles the eLeaf menu closely. Don't think I'll every use close to the 200w it can provide however, have rarely gone over 100w for anything.
Overall I'd give it a 8/10 for functionality, with plus points for price.