I dropped my N5 on a wood floor from about 3.5 feet up. It landed flat on the screen and got cracked horizontally across the screen. The screen protector and Spigen Ultra slim case were on it. No rocks or hard objects in the area.
Read in Google forums that several people had the same thing happen. Others said their 5's landed on an edge and did not break.
It may be a weakness of the screen/digitizer and I plan to get a case that protects the screen more when the phone comes back.
The repair costs $146-150+ shipping in the US and $230 in Canada from LG repair centers. The screen and digitizer are fused together.
One fellow bought the screen/digitizer part off E-bay for $200 and fixed it at home.
I have my N4 to tide me over.
Takes about 17-20 days to contact LG, send it, get an estimate, authorize the repair, and get it back after the repair.
Wireless charger;
I've been using the Koolpad Qi wireless charger the past month with my N5 and N4. It has worked very well. The phones had slim cases on them and charged without problems. The phone does not have to be straight, I can lay the N5 at a 90 degree angle across the charger and it charges.
Not bad for $35.
The charger beeps when it starts charging and it doesn't beep again or you can buy a silent version.
I recommend it.
http://www.amazon.com/gp/product/B00DQCUVPI/ref=oh_details_o02_s01_i00?ie=UTF8&psc=1