Hey guys I just received my 15in refurbished rMBP 2012 15' base model and have a few questions. - Everything seems to be super smooth except for when I change the width of Safari. When I click the side of Safari and move it around the screen it sort of lags, is it supposed to be like that? - Is Safari the recommended browser? - Also, is the $1600 refurb price that I got it for a good price even though the 2013 models are gonna come out sometime soon? I'm just a regular college student and thought Haswell won't do much different for me. Thank you!