I've tried a few of their juices and they aren't bad. One of my personal favorite places is Kalamazoo Vapor Shop in Kalamazoo Michigan. They have some pretty good stuff. Vaporescence isn't too bad either.
Now as for DFW Vapors themselves, I am not happy with what they sell. The people there are nice and helpful, good customer service, but they sell knock-off stuff. I've been ripped off 3 times on hardware with them now, and I will never buy anything but juice there. First was a knock-off Ego kit that they were marketing as genuine. The actual atomizers were real, but the batteries and charger were NOT genuine Joyetech, and they were advertising them as such. Then I bought a Lavatube clone from them which fell apart after 6 months of use, though I'm not too mad about that. It was my every day, take every where mod, and a lot of people were buying them from the same place. But the final straw was just this last weekend where I bought an "aClear Variable Clearomizer" which is a Vivi Nova clone. I paid $15 for it, more expensive than the genuine, and they want $5/ea for knock-off heads that are normally $3/ea for genuine. That's all fine and dandy IF the genuine heads actually worked in the aClear (and that were the only difference), but the genuine heads will not work in the knock-off base, the contacts are slightly different sizes so the heads don't make contact. So now if I want to use it I HAVE to buy their overpriced knock-offs if I want to change heads. Plus, I now have a genuine Mini Vivi Nova sitting next to it, and the air hole is MUCH larger on the genuine Nova, and has MUCH more vapor and looser draw, not nearly as stiff as the aClear. They look nearly identical except for the heads, which at that point I wouldn't mind the clone if the heads actually worked, the draw weren't so much stiffer, and the thing didn't wick like crap.
Taking a look at their other hardware they have, like the Stardust, carto tanks, and drip tips, it's all pretty low quality stuff compared to what I've ordered online or bought from Vaporescence.
All-in-all their juice is pretty good and with Vaporescence only selling 12mg now, they're great for low nic stuff, but with the amount of knock-off stuff that I have gotten there that costs just as much if not MORE than the genuine stuff, I will not buy anything but juice. Vaporescence is much better for hardware, and I just found a place in Vista Ridge Mall in Lewisville called Dragonfly which also sells genuine stuff.
