I recently purchased the badly and so wrongly reviewed 14z inspiron ultrabook. First things first, the reviews got me so worried about the display, but their is nothing wrong with the resolution. Yes, it's a bit less brighter than other notebooks out there, but it is more than good enough. The battery could be a little more, but I usually use it at home, so it's not really a problem for me. But in general, I'd say it lasts around 4 and a half hours. I am awfully pleased with the product. This is my first Dell purchase, and I assure you I will be back for my next! The design is magnificent, and the keyboard is fun to use. Although, I did face one problem. When I turned the lappy on after the first shut down, it wouldn't move past the Dell logo, but all good, nothing the forums couldn't fix. My ultrabook has no problems whatsoever and the speakers are more than satisfying. Great job on this one Dell!