Thanks very much Joe for sharing your experience and request missing features.
I understand that, even if there are a plenty of benefits coming with a RESTful API, the main drawback is the overhead for previous Java developers working with Rebean. Hope, with time, you will able to all that you've done previously... and even more.
By curiosity, which Java librairies are you working with to access to RESTful API like Raylight?
Best regards,
Anthony