I am happy with the build quality so far. It feels sturdy and lightweight. The laptop is noticeably lighter and thinner than my old ThinkPad. With the lid open it is about the same height as my 14 inch but there is more vertical screen real estate because there is less black around the display area. I have read about issues with the hinges but I think this has been fixed now. I have not had hinge issues. I opened up the laptop to take a look inside when I first got it and everything came apart and went back together nicely (my only surprise was one screw does not come out all the way by design which I had to Google about). The expansion slots are maybe a little too sturdy and require a good amount of force to remove.

For battery life I think an average user can expect 5 to 6 hours. I use mine for about 5 hours with Firefox (around 10-20 tabs) and a few terminal processes and will still have about 20% remaining.