Previously traded on the Delta. However, it had very poor functionality. And often braked. Today is the best solution exchange IDEX
I also do trade on etherdelta and forkdelter but it has been long I used them to sell tokens. The two decentralized exchange that come from each other do discourage trading to keep distance because of the "functionality " I think I do prefer to used a centralized exchange more than decentralized one this days.
So far yes that's one of the dex with volume. After the hack of binance, a lot of users in the forum are recommending to use DEX for safer funds. One that I have been using before was the WAVES DEX, it existed before IDEX but failed to generate more volume. I don't really see why DEX will be used often if there ain't no volume to it.