Well I got the previous version of the MBP 13", let me just say it is great! However I am tempted to upgrade to the 15" with the i7. The size of the 13" is great, though the laptop is a bit heavy, it is very portable. Upgrading to 15" would probably not be as portable. The 15" has a hi res option and also the very powerful i7 processor. Or the sensible thing would be to just use this machine for a bit longer and wait till the new models with USB 3.0, light peak and an oled screen come out!