This is a DEX exchange based on the Bitshares code. its ecosystem has fixed transaction fees.
One of the biggest advantages of this type of exchange is that it is really difficult to attack since the servers are scattered all over the world, so your funds will be safe with XBTS.
I believe that decentralized exchanges will be the main means of cryptocurrency exchanges.
The best opportunity for improvement is that they should have improved guides for beginning users to create their account as it is a bit confusing at first, especially those who do not know the Bitshares network.
In general, they should make the registration method easier since when trying several times and receiving some type of error, people usually decide to use their platform, in addition, the daily volume handled is still small compared to binanceDex for example.