Got it off of Craigslist because it was too good of a deal to pass up! Very noticeable difference in weight compared to my MacBook Pro 13 but no real noticeable difference in performance at all. Having done any real encoding yet but I'm not going to use it for that purpose. Higher resolution screen is great and I have no difficulty reading and writing with the smaller screen. Wish the battery life lasts as long as the MacBook Pro but this would definitely be a much better traveling companion especially when flying. Now I have to justify having the MacBook Pro 13, MacBook Air 11, and and iPad 2... I might have to sell off one of them if I can't but I might use the Pro as at home and in the office because it does a great job encoding videos and it's not that hard to set it up as a server. Also, reselling the Air for a higher price than what I got it for would be easy too... Decisions! Decisions!