New ewallet Luxon Pay, what's the catch?

So I have had a couple guys from party support telling me about Luxon Pay. So I went to their site, and it seems they don´t charge for p2p transfers and about currency exchanges, they offer spot rates and 0 fees (which have always been a big con with skrill and neteller). These features sound great, so only con I think of now is it being only accepted on party, has anyone heard of other problematic things about Luxon Pay?