amazing!  I felt I was taking a bit of a risk ordering thisFrom reading reviews I was relatively confident that the T440 old. But, the proof is in I change my mind after using it for a couple of days, so it is said. And yes, when my T440 showed up, two days ahead of schedule, I immediately purged it of the Microsoft software and installed.The installation went smooth as silk and I haven't come across anything that doesn't work running Ubuntu. The battery that came with mine seems to be fine and I haven't yet ordered a new one