MVP doesn't have an ohmmeter, that's a big one for me. I like to know the resistance of a particular clearomizer so I know about where to set the initial voltage for it. Also lets me know when one is starting to go bad.
I also just like the look of it.
Also, the one thing about the MVP I don't like is the built in battery. Very easy to replace the battery in a Vamo, SVD, or similar type mod.