It's indeed a very interesting approach they've going on here, and from the tests I've seen on the DEX itself, I can safely say that it's going to be a game changer.
Anyone will be able to trade freely, instantly, and with very low fees, between all their favourite coins and tokens, doesn't get any more convienent than that!
each exchange has a different advantage. some have a large list of assets. of course, that means there is support from many communities. There are also few assets but with low transaction costs. but DEX always provides the best for daily traders who want to buy and sell quickly and in high volume.