I got some from Dawn at ecigsmokestore - yes, it tastes like butterscotch hard candy and it tastes good with caramel, too. I also got some of her rootbeer - rootbear barrels coming out of my PV into my mouth!
I got cherry from someone else - tastes like cherry lifesavers and mixes well with other flavors. And I got cherry lime from liquidXpress - when you were a kid, did you ever put both a cherry lifesaver and a lime lifesaver into your mouth at the same time? Yeah, that's the taste!
I haven't tried butter rum yet - I have too many flavors already! But there's a local candy-making supply in the town next to me, and some Saturday I'll wander in and buy some of their Lorann flavorings - but maybe I'll wait until I've tried all the flavorings I bought online!