Pros: Great performance for gaming, pretty low power requirements (running this on a 300W power supply), runs very quiet when active/basically silent when idle.

Cons: - The bundled Asus GPU Tweak utility has some usability/bugs. - Overclocking or underclocking sometimes doesn't seem to take effect properly, even with super small increments. I've tried upgrading to the latest version of GPUTweak, as well as the latest Asus bundled ATI drivers, but the issue is still there. - Strange intermittent graphical glitches/desktop gitters with all driver versions when in desktop mode. Happens when closing down a video player or a game sometimes.

Overall Review: I don't know if the minor desktop glitches are caused by the factory overclock setting? Next time, I' might try getting a card that isn't factory overclocked to see if it exhibits the same behavior.

Pros: - Light weight - form factor is good for a 13.3, quite thin, though not quite macbook air level - decent battery life (5 hours or so with decent usage), - touch screen works well with Windows 8, - hard drive is reasonbly fast with hybrid ssd, - pretty quiet when used

Cons: - touch Screen is pretty reflective, so has some glare issues - can't upgrade to 8 GB memory??? I opened it per Sony's instructions, and didn't see any sodimm slots?? The descriptions say max memory is 8 GB, that one slot is soldered at 4GB, so maybe I interpreted it incorrectly to mean that you can add a sodimm stick? - The material for the case looks cheap. Not what I'm used to with Vaio laptops - keyboard keys are quite shallow (for picky typists like myself my seem annoying) - touchpad doesn't feel great, clicks don't register as expected

Overall Review: I got this newegg.com on Black Friday for $600, which is a decent detail for an ultrabook with a touch screen.