Love the form factor, love the screen. Getting used to the keyboard... Think I could love it in time. But the performance... Buggy and slow. Particularly with anything Photos related. For instance whenever I get a new computer, I always go looking for a new wallpaper. I found some images, but clicking "Add image to Photos" results in... Nothing. Spinning pinwheel, maybe freezing. If I get lucky and don't get the pinwheel, I have to save it somewhere else then physically drag it into Photos. Two hours on the phone with Apple Care did nothing. And anytime I try and upload pictures from Photos, like when I tried to upload shots of my Macbook Air to Craigslist, resulted in a spinning pinwheel, and Safari eventually freezing. Another call to Apple Care did nothing. I should mention, my WiFi is pushing 200 mbs, 170mbs verified at the time of the attempted uploadings. Beyond the Photos drama (which works fine on my girlfriend's brand new MBP 13 retina and the aforementioned Macbook Air, all both running the same Yosemite 10.10.3 as my Macbook), other things are slow too. Programs open slowly. Programs save or close slowly. Turning on takes forever. Turning off happens. Or maybe it doesn't. Maybe the I get a pinwheel, and have to hold down the power key and force a shut down. It took four minutes to recognize a phone plugged into it via the $80 adaptor. Sweet. Anyway, that's been my experience thus far. Lots of spinning pinwheels. It's the pinwheel express. I've erased and reinstalled everything three times. The last two times I set it up as a new computer, no Time Machine involved. The old Macbook Air is clean anyway, so it was never a matter of corrupted files or spyware or something. I have to think at this point it's the hardware. This particular Macbook just isn't ready for primetime. It's a lemon. Guess I'll return it and try and swap it for another one. Kind of rough considering how few stores have it... I was lucky, I found mine two days ago and it was one of four in the store. A flagship store, in a major US city. So maybe swapping it isn't in the cards... Bummer.