Do you know decentralized ETH exchange other than EtherDelta and Idex?
Currently is foo expensive to sell on EtherDelta - you need to pay $3 to deposit tokens, $3 to sold tokens and $3 to withdraw ETH.
Every platform has its own decentralized exchange site. But it seems not worth to use the decentralized exchange at this time. especially to trade ethereum token and assets how the fees were very expensive.
As far as i know that the fact that basically, the decentralized exchange will make you able to do a direct payment to the another user's wallet. that means you will be using the blockchain transaction every time.