I have been using VPN for several months. And it is the most suitable for me of all such services, at least of the free versions. Of course, if the project implements all planned functionality, then the product will be excellent. There is a question about the planned DEX exchange: is it something serious with limit orders, the possibility of margin trading and network selection? I read that in the future there will be own blockchain. What advantages will it have over others?
By the way, Freya VPN is really good. For 2-3 months I used the service without registration, only to periodically visit some "forbidden sites". Now I am thinking of buying a premium account for 6-12 months. It's bad that we can't pay with Frey, it would help with the marketing of all the ecosystem projects.
If we talk about blockchain, then I think at the current stage it is difficult to talk about it. You need to wait for testnet.