I got a vamo just last week to use while I send my provari back for repairs. I got the ss one from exhale vapors. I was convinced that I'd be disappointed with it after using a provari for so long, but I really like it a lot. With the 18650 it's a little too long for me, so I ordered some 18350s and I love the size with them. Have to charge the batteries more often, but they charge quickly. Rotating 3 isn't too big of a problem. I love the menu system. It may not be as durable as the provari, but, hey... My provari has a messed up button, so they are not immune to malfunctions.
I had gone back and forth between getting another provari or something less expensive, and I have to say I am very pleased with the vamo. I'm not crazy about the modulated voltage, but after a few days I got used to it. I'm very happy with the ease of changing the voltage and find myself changing it up to suit my mood way more than I did with the provari. I didn't think the provari's click click click menu bugged me, but now I'm not really sure I want to go back to it when it is fixed. I was never a provari fan girl, but I do think its an awesome pv. I always thought I'd get another provari someday, but now I'm not sure if the cost is really justified.
If I had gotten a lemon I'd be pretty unhappy, so hopefully quality control will pick up for these guys.