I can also offer that the penelope is brilliant when mated with a provari.  I have gone from running a double-wicked, dual-coil setup (1.0 ohms) @ 3.3 volts all the way to a single-coil, triple-wicked (3.5 ohm) rig @ 5.9 volts.  What I can say is that the Penelope IS simple to setup, a breeze to clean, and fun to experiment with coil techniques.  You can setup ANY type of draw you like, loose as a goose all the way to...well, closed.  I find that the flavor is superb.  Better than a .357, better than a Cisco 306, and better than an AVA.  I'm a spontaneous dripper, but I don't do it so much now that I have the penelope dancing to my music 

  I believe they say the tank holds 1.3 ml, but I find that I can put 1.5 ml in it perfectly.  I have never tried dripping with it, I just don't need to because the flavor is spot on every drag.  Lets see, ZERO leaking, no spitting (except once when I opened the juice control too much and flooded the coil), but to fix that all I did was close the juice control and take a few quick, stern puffs.  The flavor and texture (yes, texture!) that I was getting running the dual-coil 1.0 ohm @ 3.3-3.4 volts was unlike any vape I have ever had.  It was almost...well, juicy?  thick?  dense?  one of those or all three, it's hard to put into words, but definitely very different in a good way.  I mouth inhale, and throat hit is not something I am very concerned about.  I have tried some direct-lung inhales and whoa...hello TH!  Strangely, the only time I was NOT impressed was using the pre-joined wire for my coil.  I don't know why, but it was not memorable, but not bad either.  I usually run 100% VG juice, but have run 70/30 and 50/50 for my girlfriend.  I am very impressed with the quality of the components, the design and it's function, and the overall finish is quite pleasing.  I have not tried the genesis-style atomizers, but for now, my ProVari v2 + GG Penelope = 

     Hope some of that is helpful to you!  -Ern