Thanks for all the info. I think that I am leaning towards the eGo Twist. Just have to discuss it with hubby now.
A couple things you might want to consider before you decide on a Twist.
For the amount of time it runs between charges, a Twist is one of the largest e-cigs out there. The 650mah will last maybe 5 hours for the average vaper and is as big as other models that run nearly twice as long. The 1000mah will last about 8 hours between charges and is absolutely huge. It's not that big around, but it's ridiculously long.
The Twist is a terrible choice if it's your only e-cig. What will he use during the hours they take to charge? The 650mah version doesn't last all day and will take a few hours to charge. It may need charging twice a day. The 1000mah might last most of the day, but what will he use during the 5 or so hours it takes to charge? You definitely don't want to leave them on a charger overnight.
And this is all not to mention what happens if, for some reason, his Twist malfunctions. These are mass produced Chinese e-cigs. They aren't exactly fail-proof. Nothing will send hubby back to cigarettes faster than a dead e-cig and nothing to back it up.
Unless you get two of them so you can use one while the other charges, it's not going to be a very good situation. If you gt two of them, you'll spend as much as you would on a real, full featured variable voltage e-cig with two batteries that you can replace for a few dollars instead of throwing your whole e-cig away when it wears out.
For a new vaper, especially a somewhat reluctant one, you'd be wise to avoid the variable voltage models for now. It's an unnecessary complication that he doesn't need and likely won't appreciate while he's still transitioning from smoker to vaper. Keep it simple, effective and time-tested. The best choice in your situation is the Volt from smokelessimage. This is coming from someone who generally hates cigarette style e-cigs and rarely recommends one. But in certain cases, they are clearly the best option and, IMO, this is one of those cases.