My suggestion for a first step used to be the Ego C Twist 1000mah with a Kanger T3.
I'm a veteran vaper and have tried many different solutions.
My new favorite recommendation for a New Vaper is the Innokin Itaste MVP,Built in 2600mah battery that lasts over two days!
If you don't mind a box mod.
Ths unit is super easy. Basically you plug into any Micro USB Charger to charge.
It has 3 buttons.
1st button is the Fire Button
2nd and 3rd adjust the voltage.
No Chargers, Additional Batteries or other complications. Just find your sweet spot and vape.
The new version has Ego Threading- Look for one that has Ego Threading.
The reviews all give it a thumbs up
A PBusardo Review - Innokin iTaste MVP - YouTube
iTaste MVP Review - YouTube
Two clarifications
1:Busardo evalutates a older model. The feature to use EGO Threads has been added
2. Field of Vapor at 7minutes and 25 seconds has a fix for one of Busardos complaints
3. Field of vapor complains that it outputs voltage that is .12 volts low. So what, since it consistently does this there is no variation. You can easily compensate for it. It just isn't a strong enough reason to pan the unit. The unit provides rock solid vape.