Maybe it makes sense to consolidate all "should I buy?" -esque topics into one thread, given the sheer volume of individual threads asking similar questions. Regardless, that's not what I'm trying to do -- just have a few questions of my own. - Any heat issues that you've noticed? (retina display was a source of some concern) - The "asymmetric" fans: are they actually less noisy? - Any pleasant or unpleasant surprises that Apple/reviews haven't really mentioned? Thanks!