I've been using the DEX for three years. Volumes are improving exponentially. I bought a bunch of HERO before this latest dump and have done extremely well; best part is that I'm now selling the HERO to buy cheap BTS. It is awesome.

As for the DEX I use it because there is no risk of losing my money like with other centralized exchanges. Also fees are cheap. Once the liquidity grows it is going to be the best crypto exchange on the planet.