Been torn on these. Nebox was a bitter disappointment in the early ones with the TC running scalding hot & jumping all over the place, but once I returned my first two, the replacements held temp and have been my main daily drivers even over my DNA200s. I ended up buying more of them. Now I have one in each color (including green) and two black (blue & green new in box still - Deeming Stash).
Thought Plato was going to be the one, but that was a flop. Summa isn't bad, but heavy, the board is a disappointment (still trying to get Artery to put a DNA75 in it as a parallel product line & currently evaluating the RBA on Beta for Artery - good flavor but smaller than it has to be & therefore limiting). Egrip II has Great Flavor & Decent Airflow but spits like a Thompson machine gun with the Notch Coil & battery life is limited.
Figured I would give Cupti a try at some point as it is smaller & lighter than Summa, really like the top display, looks, Pyrex Tank, proposed CLRBA & quick change battery door. Hate the USB, lack of firmware upgrade-ability, and complaints about the coil flooding from almost every reviewer (some of whom are retracting). Ecig-City has Cupti for $36.99 now in stock & 10% coupon brings it to $33.29 which is low enough that I may try (have to buy 2 for free shipping). Called the guys over at Ecig-City & they say they should be doing a coupon for the 4th that isn't announced yet but their boss doesn't tell them what it might be. If it offers enough incentive, I may just give it a go.
If I had a half a brain, I would stay very far away from it until I'm sure they have fixed the issues and start selling it with the RBA. Part of me just can't seem to resist wasting my money on All-in-Ones that fall very short of my needs. All depends on what the coupon deal turns out to be.