TFV is ok - I got my first e cig there - the one off Blanco Rd. They seem especially geared towards getting newbies off cigarettes and into vaping. They are passionate about what they do. They have a lot of juices you can try - The last time I was there (6 months ago) it was mostly chinese stuff with a small assortment of American juices - like Kick Bass Vapor and Alien Visions. I kind of stopped going there because they don't (or didn't) carry a lot of stuff for advanced vapers - like no RBA's or related supplies, no dripping atties, no mechanical mods . . pretty much just Joyetech stuff and clearos.
The last time I was there I wanted to buy some atties for dripping - they had a few in a drawer but couldn't tell me the resistance and didn't seem too interested. Plus, usually when I went the small store was really crowded and hectic. Prices are (or were) a little high, too.
Overall, I think they are nice folks doing good work - especially I liked talking to one of the owners, Randy. I'd say it's worth it to stop in if you get the chance - try to go during the middle of a week day when it should be a little less crowded and you can chat with the staff a bit - they are pretty knowledgeable about what they sell and very much into vaping.