Atomic swaps are a necessity within the cryptocurrency space. I took a look at the ETH-TRON swap page and I must say I like the way it looks: neat and easy to use. Since it's just blockchains interacting, will Jelly charge for facilitating transactions or how does it intend to be profitable?
They do not charge the fee but they are gaining profit from the spread. you can read their whitepaper to know more about the ecosystem.
I think the team needs to update their website by adding a live update of the price.
for example like this
ETH/TRX 10037.249572(it is automatically changing whenever the spread changes).