How to implement Escrow on the site?

Question

Freelance

Hello community!
As part of the project to increase IT export www.export-it.ru , the creation of an exchange of IT services (read freelance exchange) Service Box .
The site will need to implement the function of escrow funds (Escrow). Implementing functionality from scratch is, of course, very expensive, labor-intensive, and we will not do this. The second option (working) is integration with some existing Escrow service.
The exchange is aimed at users from the US and Western Europe, so the service must work with dollars and euros.
So far I have found the www.escrow.com service, sent them a request, I'm waiting.
Who has experience in this area? Which escrow service is worth paying attention to?
How laborious is it to make such an integration?