Vamo was my second mod, i liked it a lot. Does everything a provari can and more. easy to adjust volts rms settings, and great to use as a ohm reader. Once you get into RBA's you'll find your vamo is perfect for reading ohms. Personally i got a vamo thru china as it was the cheapest way to go. 30bucks cant beat that just had to wait a little bit longer to arrive. If i had to do it again. I'll just buy a provari and call it a day. Even though i was happy with my vamo. the provari just is much better because of the pwm and i've read tons of forums on the vamo vs provari topic.
If money is not an issue go provari. because once you start the vapeball and it keeps on rolling you'll eventually end up with one later on. Enjoy your vamo! My 2 cents.