I like my eVic well enough... I work with computers all day and charging's not an issue, so I threw the 18350 tube on it and it's a tiny little sucker.
However, I got it knowing it would be my bang-around take-everywhere vape. I don't expect much in the way of accuracy, and I fully expect it to break before long. It feels awfully flimsy compared to any of my other PVs, and with all that plastic I wouldn't expect it to survive a drop to the pavement.
I've found the software side of things to be buggy to the point of near-uselessness, but even when it works I can't say that there's much of anything valuable there anyway... so even though mine can go days at a time without being able to connect to the MVR software, having played with MVR for about 10 minutes when I got it, I don't feel like I'm really missing anything there. I just wish it would stop getting stuck "Uploading..." so that I could vape while it charges, which I can only do maybe half the time when it's plugged into a USB port.
It works OK. The voltage and wattage aren't accurate, but they're close enough for me. I've had trouble getting it to fire attys that other mods use without issue, but it's only been one or two of them. Again, I wasn't expecting top-of-the-line performance out of my eVic, so I'm willing to let that slide.
A game-changer? I hardly think so, personally. It strikes me as more of a novelty, and a somewhat cheaply-made one at that, as many novelties are. Still, until I manage to break it, it vapes nearly as well as other comparably-priced VV and/or VW mods, and vaping's all I really got it for anyway.