So I picked up a late 2013 rMBP this week to play with Yosemite. The reason I'm upgrading is because I wanted to be able to use Handoff later this year when Yosemite is officially released. My last laptop was an 2011 MBP with high res matte display, and a 600GB SSD that I put in. While I certainly did not have any complaints about my laptop, I was still shocked at the differences that I'm able to tell from the upgrade. Never in 10+ years would I ever describe the 2011 MBP as "heavy" considering some of the other laptops I've had in the last 10 years that were 1.5" thick, and bulky. However, now that I'm using the rMBP more often, the SuperDrive in the older MBP is definitely making it feel heavy and bulky. Both of the screens are pretty decent. I haven't really worked outside too much yet, so I'm still not sure if I'll be annoyed by the glare. Having a matte screen really spoiled me. Another benefit that I'm now seeing is the wireless a/c. When I was moving the Yosemite install file, I managed to copy the 5+ GB file in under a minute; which was amazing. Despite all the little things that a lot of people bitch about on here, I'm just amazed that I was still able to feel like the upgrade is worth it. A lot of things have certainly changed in the last three years, and being a "new" rMBP user, I can gladly say those changes have been for the better. I'm definitely looking forward to improving my productivity with this new machine. Crazy world we live in... Side note: I think I'm definitely in love with Yosemite. Some of the changes take a little bit getting used to - but I like the direction it's going. It's definitely starting to be more of a personal assistant, rather than just a platform for software to sit on. The way computing should be.