Hello everyone, I have a mid 2009 MacBook Air (2MB Ram, 128 GB HD), running Snow Leopard. I am wondering if I should upgrade to Mavericks, or if I should just stay put with SL. Has anyone with the same or a similar computer upgraded, and if so, can you tell me about your experience? Also, if I do upgrade to Mavericks and decide that I don't like it, am I right to think that it should be easy enough to just wipe out my HD and do a restore from my last Time Machine Backup under Snow Leopard? Thanks in advance for everyone's help.