Been searching for a more portable laptop to use than my Late 2013 rMBP 15. I don't mind losing a bit of CPU grunt in exchange for reduced size and improved battery life. The biggest hurdle I've found is finding a competitive screen. I had previously narrowed it down to the new Dell XPS 13 and Acer R13, but the Dell has issues with firmware locked adaptive brightness, and the Acer had horrible viewing angles. Beyond those, it seems like the ASUS UX303 line, specifically the LN (now LB in the US) version with the Nvidia GPU, is the best match for me. The ones listed in the title are roughly the same, just different naming for different regions and a different LCD. Here's a good review with specs:

http://www.notebookcheck.net/Asus-Zenbook-UX303LN-Subnotebook-Review.137995.0.html

I really can't find any faults as far as specs, performance, or battery life. Only thing left is to see the screen in person. Is there anything else with similar or better specs at a similar price ($1299 USD w/1800p display + 512GB SSD) that can compare? I'd rather not go back to Apple, as the only reason I bought the rMBP 15 was for the hardware, and I haven't warmed up to OS X or the gimped flavor of Windows run in Parallels and Boot Camp.