Very nice. Mid-2009 MacBook White 2.26 4/250 much snappier - huge improvement in Safari. Not sure Reminders and Notes are up to their iOS brethren, but it beats opening Mail or iCal when you need to remember something. Wish Notifications was a 4-finger swipe on its side like Dashboard is, but hey, right edge swipe works too... Alas, no AirPlay Mirroring for me. Bummer.