My take on what I've tried so far.
Pina Colada 5% I've had better, for less money, but it isn't bad, going to play with it some, and up the percent.
Jamaican Rum 5% pretty decent rum, but more of a butter rum to me, kind of reminiscent of lifesaver butter rum.
Blood Orange 5% not bad for an orange, not a stand alone for me though, will make a decent mixer I found 5% sufficiently strong.
Mojito 5% a pretty decent mojito flavor, this one again will make a good mixer
Sweet Tarts 5% pretty spot on to the candy, good flavor on its own.
Peach Ring 5% If you like the gummy candies you should like this, needed a bit of sweetener for me though.
Sweet Tobacco 3%, just a little bit of sweet, and even less tobacco, may need to up the % on this one, UC steep did not help at all, may need some time and natural steep. need more testing, but not looking promising.
I'm normally a fairly heavy flavor guy, I need extra in most things, but 5% was pretty good on all of these, a few average, and a few winners. I have about 17 more flavors in the mail will update with them.
Customer service is pretty good for these guys, they actually seem to care about it. Hope this remains a business model for them, I can see some bulk orders in the future, especially if the rest of the flavors are as good. They may need to work at the Tab flavors though.
Will report back if my initial Tab impression changes.