Hardware - Not premium, but a great combination of rugged, good looking, and practical. It was a pleasure to hold (and still was last time I pulled it out), with the soft, grippy, rubber back and "just right" size. Removeable battery was a plus.
Software - Lots of nice little touches by Motorola. I wish Google integrated more of them when they bought Motorola, like the "double flick" to turn on the flashlight. One of the first with lock screen notifications in white.