Not a vaping guru, but here are my thoughts....
Positives:
Amazing battery life! I vape a LOT, and it lasted three full days, when I tried to see how long a full charge would go!
Clicky main button! The button you use to vape is flush, so it won't be pressed accidentally, but it gives great tactile feedback, and hasn't misfired yet!
Overall excellent construction, device is entirely made of metal! Solid feel.
Bonus: Device can be used as a charger for your iPhone, iPod, Android phones, etc.! No need to carry around a battery wallet, if you carry your MVP along with you, and a USB cord, you're all set for emergencies! And... with the amazing battery life this device provides, if I need to give my cell phone a charge, I won't stress too much about reducing the charge on my PV!
Negatives:
On the heavy side. My Gripper VV is substantially lighter to carry, but it also feels substantially cheaper!
Wish there were an ohm meter, to let me know what resistance the carto I'm using is at.
Drop the "Puff Counter"... I honestly don't CARE how many PUFFS I've taken since I last turned the device on, and I have to wait while the MVP displays my puff count, before I can change the voltage setting! Slight pain in the ....
Love the finish on this device (I purchased the blue version... it's a gunmetal type of blue, not a bright blue), which so far has held up and shows no scratches or wear. Love the solid feel, although it is slightly heavy, but I guess if you want a solid, all metal device, it's going to have some heft to it.
I go often to amusement parks with my young kids... Disneyland, Knotts Berry Farm, etc.
What typically happens is, we split up, and we're texting and calling each other throughout the day. Around 4-5pm, one or more of our phones is about to go dead.
Having the ability to charge one or more of our phones from my PV will come in VERY handy, and I don't have to remember to bring along a battery bank... I'm going to be bringing my e-cig anyways! Also, the MVP will not give me any concern that by nightfall, it may go dead. Battery life on this thing is mind blowing!
For $65 or so, this really is an excellent device! If you prefer box modes to tube modes, this is a very good choice!
If money is an issue, get a Gripper VV. If you can spring for the extra $$$, go for the iTaste MVP.