Picked up mine yesterday. Loving the design and sleekness so far. Have n't spent too much time in the OS yet, other than setting it up. I have a steep learning curve, coming from a PC environment for eternity.
Congrats and one disagreement. The learning curve is not steep.
1. Close, Minimize and Restore buttons are in the upper left instead of upper right.
2. Command+key instead of Control+key.
Are the 'major' changes.