I live just down the street from E-Six, I found them on Google maps about 2 weeks after I started vaping on Halo. I had tried 2 sampler packs from Halo by then. Now I feel like I've been spoiled because I haven't tried any juices from other vendors that compare to the quality of E-Six.
The only juice of theirs I didn't like was the Vanilla Sky - but that's just not my taste, I don't like vanilla. I LOVE Strawberry Fields, a very strong but mellow strawberry cream. I also recently gave Blueberry Cream a try and I love that, it's a very strong but mellow blueberry cream. 36 Chambers, a nutty tobacco flavor - love it.
The staff is awesome, very friendly, down-to-earth, helpful, and knowledgeable. Great hardware too, and you can tell they're not just running a business, they love what they do, and they love helping others get into the vaping experience.
I had been vaping for just over a year when they opened up shop. I haven't ordered juice from anyone else since I went to E-Six for the first time. After a year of waiting for the mailman to deliver stuff that for the most part was either pretty good or just flat out sucked, I could not be happier that they know what they are doing and make some of the best juice I have had so far. They are a great bunch of people who know what they are doing, and they're doing it for the right reasons.