I am a student and so had at the beginning of the 1st semester a laptop here, on the one hand in order to take it easy with the university can and secondly, that I can concentrate on work without me distract etc. Games. Criteria were therefore not too much weight in a 15-inch screen size and yet portable battery runtimes. Also, I'm not a fan of grobpixeligen screens, why me the Full HD resolution came very accommodating when Z50-70. The choice for the CPU was also relatively easy, because the i3 with its 4 cores (2 of them virtually) by far provides enough performance for Office, surfing and watching videos, for example. My choice fell on the operating system Windows 8.1 Professional, what thanks to my Studentenacoounts I can get free of charge. It also runs fairly stable, high - and shutdown are completed quickly, still no blue screens or longer Bildeinfrierungen. Also installations walk briskly from Equip. The graphics processor proves to be a real support for the i3, so give it out a short game in it (Trackmania, the auditorium classic runs bspsweise properly, but Skyrim and Just Cause 2 running on HD resolution even with proper settings with portable frame rates) , Only major criticisms are really miserable display that virtually any offers no viewing angle stability and emotionally slow HDD. The display is really a disaster, when you look at the display head-not completely distort the colors and the whole picture is noticeably milky. Watching movies, playing mainly in dark scenes, do so only conditionally fun and also pictures you can actually watch only alone because the other the image would falsify immediately. Subjectively, the worst display that I have ever seen. For HDD: Just when you open the Explorer or copying files that Lenovo needs an incredible amount of time when launching applications, the waiting time holds, however limited. The battery lasts for office use over 5 1 / 2h by, while surfing around 3 1 / 2h. However, a strong downward trend is noticeable, depending on how many applications are installed. The keyboard is for the price ok, each key has decent pressure points although these vary among the keys, which may disturb some. I purchased the laptop for 380, since it is okay. Up to a price of 420 can strike almost without hesitation in my opinion, to buy the i5 and i7 version I would advise against. Even when processing faults are, 2 screws so me are just broken out on the bottom. He also creaks very during transport, the hinges are but stable.