Oh also, Motorola states they use something called "Gorilla Glass" which is supposedly super strong but based on the number of people who ask about this repair, I don't think it's any stronger than the glass on an iPhone.
I spend a heck of a lot of time in this forum and I can tell you that the number of dropped phones that didn't crack/break far exceed the number of unfortunate people who just dropped it and had it fall in a funny spot.
I've dropped mine several times and fortunately for me the glass is fine. And the glass is "Gorilla Glass" and it's very durable. However glass is glass and if you happen to drop it the wrong way, stuff happens.