My first "Failure Boxes" as think of them (not so ) affectionately some three years ago were some kind of cig-a-likes and replaceable tips supposedly loaded with liquid. Weak battery which always died when I really wanted a smoke and too many "Dead Men" in the replacement tips.
I replaced that with a couple of E go type things but hated the restrictive draw, lack of real vapour and tendency to become chronic gurglers - so went back down Tobacco Road again.
Last year my daughter have me a Kamry K100 e -pipe took to it right away...then discovered iSticks and Nautilus Minis and was cruising.
Now having found out about Vapocalypse I'm also Squonking Dripping and coil building as well as DIY- ing my own juice.
Vaping sure is a journey...a great one.