I personally love chromebooks for their long battery life, simplicity and lightness.  The samsung chromebook 2 fits all the requirements , however , I do also own a Toshiba chromebook 2 (13.3 inch screen) which is better for screen resolution and battery life.  They both have the same intel celeron processor, 16GB flash drive but the toshiba also has a slightly bigger screen and bigger RAM (4GB) which seems to make a big difference in user experience for screen fonts and the speed at which the chrome tabs run.