I bought this unit because seiem fast processor, and quickly the device is probably and usually cost devices with such a processor a little more. AAAAB: despite the brushed aluminum cover plate, the device looks fragile and not very stable, the lower part of the device is plastic (there are other HP devices that are completely made of aluminum and leave a much more solid impression ...) and also seems HP at this device having a massive quality problem. The first device that I had, I changed emerges from the merchants, because the plastic has bulged on the keyboard below the Space button up, and the Space key reason was extremely difficult to move on the left. Because I wanted to keep my hard drive, which was already filled with my data and programs, we have replaced the hard drive. When you open the service door of the replacement device much on that thread in the machine where the screw should find their footing was messed up and provisionally by Papierschipsel "repairert" was to ensure that the screw will not fall out - and something with a new device! Now that I have are the Austausgerät at home in front of me, and this was examined more closely, I notice that the outer plastic circumnavigation of the keyboard, and also as my old unit, at various points is not flush with the case easily in different places projects. The bumps are clearly seen and felt. The only is that with this keyboard no buttons are disabled - at least I have not found. No dear friends from HP, quality writing definitely different, but maybe you have to accept a loss of quality at such an affordable price for a device with an arrow fast i7 processor. Therefore only 3 stars - more is there not inside.