Welcome! Glad to hear that both you and your girlfriend are pleased with the change to vaping. You will find so much information here, and almost everyone is really nice and willing to help.
You mentioned VV, and not sure if you meant on the box mods or the tube type? The eGo has a VV called the Twist which are pretty well reviewed, I have 2 I use as my backups/ to go devices and use the ProVari at home. I am constantly tweaking with the VV because I like to change flavors a lot, and have different flavors in different tanks. It is very nice to be able to just dial in wherever the juice/tank likes it.