Back-read on this thread (hey, that rhymes) for a bit and I'm guessing you're into small mods. I can definitely recommend the pico. I love it to bits. To give you an idea of size, here it is next to my other mods:
I recently bought my first dna device which is the Lavabox M. It is much lighter than my pico despite being bigger. It is in fact slightly bigger than my vtc mini. Despite that fact though, it's my new daily driver and imho a beautiful looking mod. Here it is next to my pico:
I love small mods as I rarely go above 45w depending on which tank im vaping. Most of my tanks are now unused though and I mainly vape on my serpent minis since i can vape it at 20w. Now I know that doesnt sound like much but it blows clouds at that power. Im no cloud-chaser but it can totally put out a lot of clouds if youre into that sort of thing.