Bluetooth LE is a good thing. It means that the keyboard will pair quickly and consistently, which has not been my experience with older bluetooth keyboards.

Bluetooth LE is a good thing. It means that the keyboard will pair quickly and consistently, which has not been my experience with older bluetooth keyboards. Worse, because power consumption is significantly higher, those keyboards tend to go idle and unpair themselves frequently, which means when you start typing, it takes a few seconds you generally lose a few keystrokes while the keyboard repairs.