Reply to macbook air 2009 c2d with serato?

hi guys i need to be quick as this will go soon, i have been offered a 13" macbook air 1.8ghz c2d for a really good price, my question is has anyone run one of these with serato or ableton? and how did it perform, is the 1.8ghz enough i know it falls slightly shy of the min requirements but was wondering if anyone had first hand experience, it will only be used for serato and ableton, maybe logic but none at the same time

thanks