Ever since questions about how safe your personal information is with Google Buzz started to pop up, it's pretty much all that people talk about on the subject. That, and how to disable it that is.
This release of Google Buzz has started off badly, and when that happens, the barrier to adoption is significantly raised. The service may be cool, or useful, but all that people think about now is how unsafe it is, and make decisions based on those feelings.
Google has already taken some steps to make it better in reaction to what has happened, but I'm not sure anything they do is really going to help. Their best bet would be to take down the service, step back and analyze what has happened, and do a re-launch.
Are there any good things about Buzz though? Yeah, it's integrated with a lot of things that people already use -- posting pictures, video, or sharing items from your Google Reader is really simple -- and some people will embrace it. Unfortunately, I think the negative press around the service will be enough to scare away those important adopters -- something that is essential for a successful product launch.
Will you use Buzz? If not, is privacy your biggest concern?