What do you guys think of the mid 2012 macbook pros as of 2017? + Are they still reliable enough? + Is there such a tremendous difference between the 13 and 15 inch models (in terms of performance)? + How do they stack up against newer laptops in general? + What about buying one in 2017? + I know this one is pretty much a personal choice but which one should i go for, 13" or 15" (anything i have to know about them both)? Thank you in advance!