I've had this laptop for all of 2 terms now (about 7 months) and it's driving me crazy.
Firstly the battery life - 3 or 4 hours at most - isn't enough to get me through a whole day of uni. Carry the charger on you or buy an external battery. I called up Lenovo asking for a fix and they said oh no it's fine.
Secondly, it frequently freezes up for a few seconds, returning a "Firefox/MS Word/whichever programme you're using is not responding" message. This is not due to overload, this happens even when I have a single Word document open and the only fix is to wait for it to start processing again. I have wasted so much time waiting for this laptop to start working again.
Finally and most frustratingly, the auto rotate function does not work properly AT ALL. It rotates when it isn't meant to, doesn't when it is, and resists manual efforts to put it back to normal. As I write this on my phone, I am staring at an upside down screen which has interrupted my morning of email answering - I have been using it as a straight laptop and not rotated the screen at all. It just fancied going upside down for no reason. This happens intolerably often, and I have wasted large chunks of lectures trying to get it back into an orientation suitable for note-taking. As a result, I rarely use it in any mode other than as a straight laptop, and when I do I take care to not change the screen's orientation - putting it into tent mode to watch a film and then putting it back to a laptop to browse the net requires two different screen rotations, and navigating those can take a whole half an hour.
Its redeeming features are not all that redeeming: good speakers and keyboard, responsive touchscreen that actually works well with Windows 8 (though very few touchscreen-optimised apps in the Windows store), quick boot time. Overall, frustrating to use, wastes my time, and if I hadn't got it bundled in with my student finance, I'd be taking it back to the shop.