Haven is an interesting idea and I hope only the best for it, but many are wary of it due to its history of project management.
It hasn't kept up well with the monero codebase even after critical security updates and with plenty of people urging them, and without any real explanation. It's something I'd need to see improved before using it for real outside of testing.
I'm glad you like it! It's going to get a good update/upgrade soon as well.
fun fact: every cost of the site is paid exclusively in xmr directly. It's fiat free!