Won't break when you drop it. Won't malfunction except when limp wristed. Won't fire when you drop it. Long barrel models are very accurate. Gen 4's have different grips for different hands. Magazines are coated in plastic to cut down on dings and dents when dropped. They don't need to be cleaned often or at all and will keep working. Won't explode when an idiot cleares a squib round with another bullet.
My local gun range uses some seriously banged up 17s and 19s.