Consider going with a good Dell E7450 or E5450 - they are pretty good with good build quality, display, TPM, RAM that is not soldered.. That's what I got for me and 2 friends and we are all satisified, maybe except the weight
Wow, that's a sweet price for something with a high-res screen and Broadwell.
My question is: what do you usually do with your system, and what's your budget if you don't score the UX303? My vote is for the Dell XPS 13, although you're looking at close to $1K (still pretty reasonable) if you want a Core i5. It's all about that design and the high-quality input.