Im pretty upset with their performance in general. When I develop, I release quickly and iterate like my life depended on it. I would have loved to see them start standing up real servers to get people joining and over time they overcame bugs, new features etc.... They haven't even done that. Its quite a shame they have taken the Microsoft approach to releasing code and NOT taken the Facebook Approach to releasing code. If they ever wish to take over the social environment, they MUST release then build instead of build then release.
Its driving me crazy that I can't even start using their service all the while Facebook over takes all social networks.