We would love to hear your suggestions and advice on how we can make the platform more suitable and secure.
What is a userless escrow platform? Do you mean decentralised?
What separates you from other competitors, both in the crypto and fiat world? For instance, what incentives would people have to use your service as opposed to eBay, Bitify, etc. that are already quite established in the marketplace as Welsh has said?
Having lower fees etc. simply won't be enough. You need to create a way to not only attract users with a good UX, but also be able to monetise them in the process.