I already bought 2.0 only because of the early bird price, but I haven't tried it yet. And I probably won't try it until they work out a few more issues. I use the Way2Call, so per the release notes, that basically excludes me from 1951. Based on what I'm reading on the board, I'm also not convinced that my necessary plugins will work. I have evolved to a reliable working HA system with 1.7 and WAF demands that implementing 2.0 at least maintains all existing functionality. So if I can't really use 2.0, why waste my time.
So I would say no, it's not ready for "release" as long as it is still a step backwards for existing users. However, I assume that HS figured that new users will have lower expectations and will probably do just fine with it. The only ones who will be disillusioned are existing users - but they have 1.7 and besides, they should know better.
I guess that people (both HS and existing users) are just too darn impatient - they can't help it, it's just human nature. Anyone who's been following the 2.0 saga knows that HS had relentless pressure from users and apparently they caved. I think we all know that it's really still BETA for existing users.
However, I do take minor issue with the fact that the early bird upgrade price will likely expire well before a viable beta is available for all existing users. But then again, there are worse injustices out there.
Mark