The iTaste VV V3 is a
great device,
but, it's only 800mah, so it's not going to last you much longer than your Ego 650.
Personally, I'd recommend the Spinner v2. It's 1600mah, it will last you more than twice as long as your Ego.
If you like the window and features of the iTaste VV V3, I'd recommend the
EGO-V V3 Mega, (it's what I use for work). It has all of the features of the iTaste VV V3, (except the puff counter), and at 1300mah, will last you twice as long as your Ego 650.
Excellent choice on the MVP! I think I can safely say that it's the most recommended PV on these forums, and for good reasons.