Couldn't say I'm a veteran: 12 weeks, but I started with a few different starter kits of the small e-cigs. My favourites ended up V2 and GreenSmoke. (Smart Cigs & Jac were the others).
I had a few decent flavours, mostly GreenSmoke and V2, but did like the Gold tobacco from Smart Cigs.
I didn't want to move away from them either, but after around a month it became apparent that I was sensitive to PG, and I couldn't find any VG cartridges here in the UK. I'd tried refillable cartridges and didn't have a lot of success with them.
I found the V2 batteries the best.
So, I moved on to Kanger EVOD and eSmart. They're fine and quite easy to use, but only last week, I realised how much I'd liked the smaller ones.
I still have my small cig type batteries in use and using clearomisers on most of them. Nice for smaller amounts of lesser used liquids. But, it's the easy nature of changing a cartridge and discarding the old one ...so simple.
Yesterday, we went out for dinner and the item I took with me was a GreenSmoke cig battery with a Red Label light tobacco cartridge - yes it's PG/VG, but for short while use it doesn't give me any problems. So easy to pop this in my jeans pocket!
I see Blu have the Johnsons Creek VG liquid in their cartridges, and if I could get those here I would, and would likely use the smaller cig style ones more often! I know the cartridges make it cost more, but I did like their easy use.
I also saw the smaller ones that Joyetech have but think I still prefer the batteries I already have.
I actually think I inhale too much with the bigger battery models too and can get quite wheezy at times.