Summary: I loved this laptop, I would have loved it even more if I didn't have to return it due to a faulty keyboard but that's not the laptops fault I tried to cheap out and buy used. My only wish would be the chipset and processor be updated to the most current version and keep the nice matte finished screen instead of the high gloss found on newer win8 machines with touch.
Summary: I bought this one a year later to replace the UX31A-DB51 that I sent back 2 weeks after buying due to faulty keyboard and track pad. The UX31A-DH51 is awesome, bought it in Feb 2013, no problems. Runs like a champ. Though I only use it for light word processing and nothing else. I still have my work horse machines for the heavy lifting. Both are core i7 with 8g+ or more of RAM, 1g+ discrete graphics cards or more; one is a Desktop the other is a 5lb laptop.
Summary: i bought this for the purpose of making an Ubuntu ultrabook for programming with. excellent choice. it came with windows 8, which i replaced with 12.04 LTS. very easy install, all the hardware worked. the next day i decided to upgrade to 13.10 upgrade process was smooth, went to 12.10, then straight to 13.10. no issues. 13.10 runs great on it, and i haven't noticed any problems with compatibility.
Summary: When I first got this laptop I loved it. It's light weight, the screen looks good, the keyboard feels good, everything seems great. However, after 4 months of use I noticed a white smear on the screen. If you google this issue, you'll see that a lot of other people have this issue and it's caused by the keyboard rubbing on the screen when you shut the lid. You can't even close the laptop or every time you do it will just cause further damage to the screen.
Summary: This Asus UX31A-DH51 is my best laptop ever. It beats my wife's $1k+ Dell laptop easily. This Asus is lightning fast on boot because of the solid-state drive--128 GB is plenty of storage, too. I travel, and this laptop is a good traveling companion. It is rugged and beautiful. I use my ham radio internet remote base on this laptop--it is very stable and the audio is superb. I had initial problems with the touchpad. After I updated the drivers it is rock solid.
Summary: This is one of my best laptop. I bought the VAIO TAP 11 before purchasing this laptop, because the screen is larger 13 instead of 11. Battery life is good. There are couple issues with this laptop like internet get drop when upgrade to Windows 8.1 Can wakeup from external mouse. Spent couple days with ASUS technical support without making any progress. I end up get help from google search with trial & error I am rating the ASUS technical support = 1 star.