[kristofferR]

I was just about to say the same thing - it's stunning how much faster/smoother it is.

The new way Multi Display works is also much better than the old way, Full Screen Mode is actually really useful now.

[micro-ram]

You just can't span multiple monitors with a single window. I do like the improvements though. Moving the Dock to a different window by pulling the mouse below the bottom of the screen is taking some getting used to.