I used Smokeless Image Volts. The 78mms got me off cigs. They're PRETTY They have any color you can think of, jeweled end caps, prefilleds meant I didn't have to futz (although I'm sure you could fill some cartos for her and teach her)... and the autos just mimicked the cig (which was what I wanted to replace). It just made
sense. the 78mms are 320 mah, regulated 3.6-3.7v. I have a few that are a year old and still going.
Once I was sure I was in it for the long haul... I moved up to their X2s with clearos. (650, 900, or 1300 mah). I suppose I could have 2 1300s... but I'm weird and prefer the shorter size and like to have 2 going at any given time, so I have 4 650s.
You could hand me all the fancy stuff in the world... it doesn't matter. I want simple. I'm going to a wedding in a few weeks. I'll be carrying 4 of the 78mms in a decorative case. Why? They're little, they're simple, and they do the job.
I have a Zenesis Mini I use at home. I love it to death, purest flavor in the world. As long as I've got a full
tank, a good wick and coil, and a charged 18350, it's good to go. I love it when I'm sitting in my cozy chair reading, watching TV, or in front of the computer, but it's not pocket/purse friendly. Everything I carry around outside the house is.