Don't bother wasting your money on a disposable like the MVP. The VTR is at least a real mod that you can replace the battery in and keep using for years. MVP and MVP 2.0 are just as disposable as an Ego, and some of the Ego clones have pretty similar features these days. It's a big boxy 2600 mAh mod, minus the benefit of not being disposable. Might as well throw a couple variable wattage/voltage ego clone
batteries in your pocket instead, unless you really think you're going to use your e-cig to charge your cell phone on a regular basis. All the above is of course, completely and unreservedly, just my opinion.