To those wondering what this has above other laptops: For me it's the combination of 14" size, high-powered discrete graphics, and the extra bay for a 1TB hard drive, in addition to the SSD.
The Zenbook U500 is 15.6" with a numeric keypad that I'll never use, making it too wide for my needs. It also doesn't have space for anything other than its 256GB SSD. I'm already running out of space on my current 300GB hard drive, so I don't want to downgrade on space. There's also the Macbook Pro, but as people have pointed out, it's heavier, bigger, and more expensive.
Anyway, those are my reasons for waiting for the u2442F, though I admit my patience is wearing thin (they first said it'd come out in late December)!