I sold my 2014 rMBP 13", 8GB, 256GB about 3 weeks ago in anticipation of the rMB. I just got it today and I love it. I can definitely see a performance difference, but it doesn't hamper my workflow at all. It will take a little getting used to the trackpad/keyboard proximity as my thumbs and palms keep hitting the pad while I'm typing. I don't miss the performance of the rMBP as I rarely used my machine for heavy loads. I also have a 15" 2012 MBP sitting at home for any heavy tasks. This machine has completely changed what bag I need to carry with me for work though (IT).
The speakers on this are perhaps the best I've heard from a mac and definitely from a computer of this size. The keyboard is probably one of my favorite things about the rMB. If they priced this machine appropriately ($1049) it would be a no brainer for a lot of people, but I don't mind paying the early adopter fee.
How'd you come up with $1049?