It is smoking fast and it has pretty much replaced firefox as my main browser.
It loads pages retarded fast even heavy pages like xtube eerrrr youtube render amazingly well.
The cover flow history feature is also super cool and runs surprisingly well even on my macbook.
The one problem i have is on hotmail.
You see microsoft builds a lot of their sites to run on microsoft explorer. Explorer without a doubt has horrifically bad web standards support. As a web designer i have spent a ton of hours making up for it's terrible inability to render pages they way they are supposed to display. Now some people will claim that Microsoft does this to make it so people can only use explorer to properly surf the web. I personally think they do it because they don't give a fuck about web standards.
So i have been totally unable to read any email on my hotmail account on safari and it is as usual because Microsoft is about 10 years behind the times.