I'm fairly happy with my eGo. It got me off the cigarettes, so why wouldn't I be?
That being said, I expect to vape for a long time, and I want the perfect system, so I've shopped around and done my research.
i plan to buy a Buzz Pro. But part of that is for the looks and price. I'm convinced that for the "perfect vape", a VV device is the way to go. The Buzz Pro happens to be the one I picked, but there are much cheaper options, and more expensive ones.
There was a poll in one of the subforums where people who use VV devices were responding with their sweet spot. What voltage worked best for them. The vast majority of responses were in the 4.25 to 5.0 range. There are some 5.0 devices out there, but everything else in that range requires a VV device. I could buy a mod that only lets me change voltage by changing batteries (and gives me far less choice in what voltages I use), but when I look at the cost, I can get a VV mod for roughly the same money. It adds a little cost, but not a lot, and it puts me closer to the perfect vape.