Pros: Lightweight, fast and incredibly beautiful. Keyboard has a nice feel to it. Trackpad is very smooth and responsive and I usually hate them. Screen is beautiful too, unfortunately not every program has an option for this high a resolution but they look no worse than on a 1080 screen.
Cons: Windows 8 behaves a little strange with a real keyboard and trackpad. If you start at one edge of the touchpad it will activate a gesture instead of moving the cursor, but I'm sure that I will get used to it.
Summary: I purchased this product mid December 2013 and when I received it the unit worked great but the external USB to Ethernet adapter was bad (internally shorted and drawing excessive power). Asus service would not send a new adapter and I had to send the whole unit back to them. They had the unit for 4 weeks and couldn't tell me what was holding up the repairs which were promised at 1 week turn around.
Pros: High quality, high resolution screen. Dual SSDs. 28W, fast processor, particularly for the ultrabook form factor. Pretty gorilla glass exterior. All the standard buttons, such as print screen, pause break, etc. (unlike a Macbook Air)
Cons: When resuming from sleep, Windows 8.1 DPI detection believes the display is a 96 DPI display. To resolve the issue you're forced to sign out and sign back in again every time the system comes out of sleep. :(