What are your results when you upgrade a first-generation iPhone that has a jailbroken 1.1.4 to the official 2.0?

Just curious if people are having mixed results when going from a jailbroken firmware to the official 2.0. I have a jailbroke 1.1.4 and want to go legit with 2.0 but have not heard any details from others with this same type of setup.

Yes I know the jailbreaking of 2.0 will be coming anytime, but for the time being, I’m focused on the official 2.0. If I can get it that is without dealing with same problems everyone else has had. Thank you.