Well, just to throw in one more opinion. I have both a Volcano and a Magma. I use both daily. The Volcano is a mini (L88B) so is very portable, great to have at hand for one puff and put down needs when I'm at work at my desk. It's eliminated the short, get up and go outside smoke breaks I used to take, so has probably improved my work productivity. The Magma (510) could work the same way for most people, but for me it is a bit of overkill and doesn't do any better at this. Where the Magma shines is in the car or at home in front of the computer. When driving I'm used to chain smoking so now I chain vape. The Magma battery lasts better and has more vapor. The Volcano can work for this too, but I like that tactile feel of the Magma better here. At home on the computer I use the Magma on a passthrough and often drip. Lots of vapor, no battery probs, and while I'm using the PT, the batteries are all charging for the next trip away from the computer.
The other part of this is that if I was still using just factory parts, I'd probably not have stuck with these (or probably any other devices). I mod my carts (Coffee filters or blue foam), use other juices, and make my own 0-nic juice. Factory carts are ok, but modded ones last much better and you get a lot more choices, Watermelon (my current favorite) for example.
There was also a bit of a learning curve with both devices. They don't work the same and if you try to treat them the same, you will be disappointed. The attys for both had to be broken in before they really worked well, but once that was over, both do what they are supposed to very well.
Just my two cents.
