Been using the Evod Glass for the last 2 days. First, the good. Flavor and amount of vapor is pretty good, a bit more vapor than the original. The draw is very good, easier than the original without being too airy. The vape is nice and cool which I like, though some probably won't. The main thing I don't like is how fast they go through juice and battery power. Being pretty small, the originals already emptied pretty quick. I was expecting the dual coils to use more juice and battery power, but not like this. I'd say they're draining the tank and battery charge at least twice as fast as the originals. As much as I like the vape, I'll probably only be using these for possible tank crackers.
Edit: I have to retract my comment that they produce a good amount of flavor. It appears that the juice I was using is just really strong. I tried a couple other juices in the Glasses and flavor was pretty muted compared to the same juices in original Evods. Also I forgot to mention another issue. Due to the shorter tube in the tank you can only get the tank about 2/3 full.