Decentralized exchanges are certainly a future of cryptocurrency trading (along with atomic swaps), but they are not perfect. Recently, one of the most popular decentralized exchanges was hacked. However, it doesn't discourage me from trying them out. Bisq seems to be the most reasonable choice right now. Users prefer to use exchanges which are easy to use and support a huge variety of altcoins and tokens. Decentralized exchanges are still not completely noob friendly thus they won't gain a lot of attention in the coming months.