Summary: Update: Sony has had my laptop now for about a month and I got an email that the parts to repair my laptop are back ordered... Hey Sony, keep the laptop and refund my money, I'll go buy the Samsung, Acer, Apple, Toshiba, Lenovo, etc...anything besides this thing. There are a lot of positives about this laptop however the two negatives far outweigh them. The battery is locked into place with three screws.
Summary: The T-series VAIO ultrabook has some quality issues, to say the least, which is surprising given Sony's reputation and Vaio's premium brand. I could've bought a standard notebook at this price point with more functionality (e.g. optical drive) to replace my older 15.6" Acer which died after 4 years of awesome performance. I probably should've bought another Acer. This is my first Sony laptop and first ultrabook, purchased for grad school.
Summary: Its look is good and jaunty. it is very light. The appearance of it is nearly perfect. However it doesn't work. It says operating system not found. If you intend to use it for decorative purposes and not actually use it as a pc, I would recommend it to you. Please google "sony ultrabook" and "operating system not found" before deciding to buy it. The computer they sent you may not work properly and may be defective. It was a total disappointment for me.