So I have the opportunity to purchase a 15" rMBP 2015 entry level model ( 2,2 GHz QC i7, 16GB RAM & 256GB storage) with Apple care for $1153. The retail price is around $2300. It is supposedly in new condition and I have the opportunity to have a look at it and test it for 24 hours before sanctionizing the deal. Given everything looks ok, do you think I should go for it? And while testning it, what should I look out for? My ideal machine is really a 13" rMBP 2015 with 2,7 GHz DC i5, 8/16GB RAM, 256GB SSD. Do you think I could sell this machine with a profit later on if I find it too big and then purchase the 13"? Would love your opinion!