This laptop is not for everyone. There are other laptops out there that have more processing power (MBP) and better battery life (Air). Depending on what your daily use is, this could be your perfect laptop if you value extreme portability, good battery life and an excellent 12" retina screen over processing power that could rip a DVD in 10 mins or last 13 hours on battery. For portability you give up some battery life, but 7-8 hours is a good compromise for me. Also, it is a no-brainer to bring this everywhere with me. I don't have to think..."will I need my laptop on this trip"...I just bring it. It is not much bigger than my Air 2, but gives me full OS X capability when I need it.
Since I've had mine, I've used it for my online classes using Java, MS Office (word, powerpoint, excel), Virtual Box (c++ programming), Xcode, watching iTunes movies and playing music (best speakers ever for a laptop this size or almost any size). My experience thus far has been no different that using them on the MBP and 13"MBA that I returned for this machine.
It is relatively expensive, but depending on how you prioritize you needs or wants: Portability, CPU power or battery life, it may be worth it to you.