I made the mistake (in my personal opinion), based on the advise of a friend, to buy one recently. Insanely expensive and I really don't like it as much as the much cheaper Air; it has worse battery life (I had Apple check it twice and there is nothing wrong, just 'my usage pattern'; I use the same software on the Air and on my old X220 and get better battery life on both; on the X220 far better), the screen has staingate[0] which my local Apple store said they wouldn't replace for free (going to try different ones now). And it feels slower; it's objectively (tests) faster, but for my subjective performance perception it's slower. It often pops the beachball which I never see on the Air and it runs hot doing nothing but web browsing. Again, Apple checked it twice.