At one point in time it could've actually been a rather late, but good OS. Then they scrapped all the features, and the few they had left they released for XP with the service packs. So now we're left with a slight GUI change and a huge marketing campaign.
As long as it keeps XP compatibility mode also (thats a more then obvious duh, it will answer ) I'll get it on day one. But if its bug filled or has poor compatibility/issues, I'll hold off for a bit.