I quit smoking using the Halo Triton. I have friends and relatives who also quit using the Triton.
I've moved on: iTaste vv, Vamo, and Provari. ProTanks, AeroTanks, IBTanked, and Kayfun. DIY liquid.
My friends and relatives are still happy with their Tritons and use them exclusively. I've let them try my cotton-wicked micro-coiled cloud machines, but they have no interest in upgrading, even though they can afford it. I think there's some loyalty there, much like with cigarette brands.
And there's also: "Why fix it if it ain't broke?" I'm a naturally curious type, so I felt the pull to explore the range of vaping hardware. Can I rebuild coils? Can I get these devices to work better? Not everyone is like that. My Triton crew is just very happy to not be smoking, and they should be.
I recommend the Halo Triton to all smokers. You can get eGo kits cheaper, and you'll be able to try the dozens of lousy clearos available on the market. The Triton system is limited by design. It's high-quality and reliable. The last thing a new ex-smoker needs is a new source of frustration.
Couple of months ago, my wife and I took our daughter to Disney World. I left the Provari in the hotel room (too heavy), and carried my Triton around in the park. It was like bumping into an old friend. I'll never sell it or throw it away.