I purchased this in late 2009 and it has treated me phenomenally well throughout University.
I replaced the battery 6 months ago since I was still using the original one. It is in absolutely immaculate condition and still runs like a gem. Still have all the original packaging for it too.
Running OSX Mavericks. Comes with charging cable.
I'm selling because I'm upgrading to a Retina Display Mac. If you have any questions just ask.