Honest questions

I've been in going through the process of migrating from Zimbra to Carbonio CE this last week or so. I put it off because Zimbra just worked and could see Carbonio was still very much a work in progress.  In doing so I've encountered more bugs, major usability issues, bad documentation, and other issues then I have any product in my 25 year career in tech.  I really appreciate what Zextras is doing picking up the slack from Zimbra, I realize the effort involved, and I'm willing to live with some issues, but I have to ask:

• When can we expect a stable, tested, release?  It's clear RHEL is not actually supported/tested fully.  Maybe things are better with Ubuntu?  It doesn't seem like it though when you release a version that is supposed to support chat and it doesn't work for anyone on either platform.  I REALLY want Carbonio to be successful and survive long term but the community is still seemingly pretty small and these issues are a huge turn off for new users like me.
• Maybe I'm missing it but is there somewhere I can actually submit a bug report or feature request like most other OS projects?  I can't find that on github.  It's really frustrating that this small forum is the only way I can interact with the project.