To be honest, when Adobe released 3.0, I sorta felt the same way. But once I took the time to learn it, it became my favorite recording & mixing program. At first I preferred the simplicity of Cool Edit Pro 2.0/Adobe Audition 1.5, but now I couldn't ever see myself using those programs.
This is why I wish there was a Beta version for PC users. I just know things have been changed enough, that PC users might want to become familiar with the changes before the Final version is released.
And since we're most familiar with Version 3.0, we could help new users with problems they're having.
I wish I could help, but I honestly don't know where anything is in this version. I don't have a Mac.
I think the development of Audition has taken it more towards the field of music production and away from its roots in radio production.
Where I can see the need to include such elements that can enhance audio production / editing, I also think you've got to be careful you don't cloud over the basics that make the package so easy to use.
If you need to reset the interface, execute "Window>Workspace>Reset "<Workspace Name>"...
There is no metronome.