John, I can't comment on the MVP but I've got a VTR and couldn't be happier, it's solid, easy to use, performs flawlessly, and looks pretty cool in a transister radio/star trek phaser kind of way. The VTR comes with the iclear 30s tank (which I love), but the unit with tank/juice/battery is pretty hefty ... when I first got it I would have said heavy, but now that I'm used to it it's just hefty and well on it's way to simply solid. The reason I'd favor the VTR over the MVP is the ability to change to a backup battery when you need a recharge, rather than having to use a backup vaporizer while the MVP recharges. However, I don't think you can go wrong with either product.