I have been using L-BTC (liquid) and I would like to suggest you to add this 2nd layer solution to your services. I would certainly use it and I believe other members would use it as well.
https://liquid.net/Purely out of curiosity, have you tried using
https://boltz.exchange/ for Liquid swaps? It's what
Aqua wallet uses for its swap functionality. I've used Boltz before for Lightning and it worked really well.
Thanks. It's good to have one more option available.
I have aqua too. I think exch.cx would be more useful as I could exchange ltc and xmr to L-BTC too. And when fees go back to normal I would convert L-BTC to btc