I was going to buy the Nugget, waiting and watching for a few months. Lack of actual product availability and some early vendor price gouging was not a good sign, now some early issues/bugs surfacing, no real support website or firmware, etc. They may have missed their window of opportunity, as Eleaf just announced their 75w PICO device. While not quite as tiny, though smaller then my Evic VTC Mini's, the feature list like using your own 18650 batteries, 75 watts, custom TCR settings, basically all the software features I like on my VTC Mini, since they are the same parent company, similar if not identical software.
$35 for Mod only, and when they hit the shelves you will be able to buy them anywhere, early April is what I've read. Also I prefer the rounded iStick form over the square box of the Nugget. I see some listed prices for the Nugget have plummeted now, probably due to this Pico release, hard to compete with the huge Chinese mod makers. Again, it is not as tiny as the Nugget, but the list of upside features means the Nugget has dropped off my buy list, maybe down the road I'll play with one for $25, assuming they still exist. Sometimes it pays to be patient and wait especially in the current Mod market.
ADDED RELATIVE SIZES in mm's:
ELEAF PICO MOD: 70.5 X 45 X 23 (NOTE: Height is to top of battery cap, mod itself is shorter)
NUGGET MOD: 55.5 X 31 X 22