The scroll bars are set by default to be off but can be turned on. They did away with the scroll arrows though which some people complained about. I rarely used them anyway, I'm more of a scroll wheeler or page up/down type.

Missing Save As workaround.

It does have advantages, like being able to update to Safari 6, full screen option in apps which I use in Safari frequently, Java 7. iCloud integration, I use the Address Book and iCal sync between my phone and computer daily. Make a change on either phone or computer and it shows up in the other.