I am still a noob, but I would like to share my experience....
I have a friend who got an eVic, and I thought it was the bee's knees. Opened me up to this world of vaping. After doing some research, I was about to order one, until my friend, forgetting his eVic was sitting in his lap, got out of my car and it fell from maybe 3 feet above the ground and the head broke clear off the body. It was still attached by wire, and it worked, but still... that did it for me. Not to mention, that he has a whole shelf of mods, but doesnt have one Provari up there. He started with cheaper stuff, first optimizing his setup with them, then he would want something better, then optimize that set up. Needless to say he has spent enough to have several Provari's at this point.
I got the Provari right out of the gate, because I wanted to quit smoking badly, and I wanted a device that I could trust 100% to deliver that to me. I am soooo happy I did. I would have spent hundreds doing what my friend did, but instead I got the best right off the bat and couldnt be happier.
BTW, he is now selling a good portion of his mods and getting a Provari....