The device hardware is really top. The rumor about the noisy fan, I could not understand. The hinge design works flawlessly. Negative I see in the yoga that only a MicroHDMI is installed instead of a full-size, while I still give the adapter, but these exercises along with a normal HDMI cable quite a large mechanical load on the small bush made. Battery life is enough for me, I'm there to around 6-7 hours of work.
Software: Windows 8.1 ... actually I received a very optimistic attitude to the new Windows, now after prolonged use but I've got some corners of problems with it ... but it the Yoga's not to blame.