I have a 2013 rMBP 15" and just recently got a rMB. I opted for the 1.2 with 512gb. The rMBP had 512gb, and while I still have it for task such as encoding, playing graphics intense games, ect.., I may sell it. I almost never use it anymore since I prefer to use the rMB. The screen size has not really affected me, since I used the rMBP plugged into a 27" Cinema Display most of the time, so I just feel like i'm on a big iPad. I needed something more portable for school, and lugging the 15" rMBP around was not easy. Taking the rMB with me every day is not any more difficult than an iPad, yet far more useful. I love it! I'm just waiting on HUB+ to release their dock for the rMB so I can hook it up to the Cinema Display, then I will really have few uses left for the rMBP.