Welcome here in bitcointalk ., have visited the site and indeed the SImplicity of the site got my interest , and also it is good that you are accepting Lightning network deposit/withdrawal.
It's literally simple that there is almost nothing displayed in the front page. To me, it's not really that appealing. I'm sorry for saying that but each of us has our own views and they should not worry as there are still people who are like you who like that kind of simplicity they have there. Another thing that may attract people to use them is the fact that they support BTC lightning network, they don't have a KYC, and lastly they support onion/tor connection.
this will help players to have their way in cheapest transacting if there are some high fees happening in the market sometimes.
There is probably a high fee incoming, now that we are approaching on a massive bull run. So cheap coins like BTC lightning network are a big help to those users who are budgeting.