I have been a Sprint customer since I was in high school about 15 years ago. Over the past couple of years, I have dealt with their promises of network improvements, waited patiently for them to get the iphone after ATT and Verizon. I've also noticed that my service just flat out sucks, my 4s would constantly switch to the the 1rxtt data while in central Austin. When I try to use GPS in my car especially in other cities, it is unreliable. My friends who are on Verizon and ATT brag about their speeds and can pull up information that I am normally struggling to access. When I call customer support they always tell me a tower is being worked on and offer me a $25 credit. I don't care about the money, I just want my phone to work consistently! I am sad to turn my 5s back over to the Apple store. I just need to wait a couple of weeks for my contract end date on all of my lines and then I can make the jump to ATT or Verizon. Hopefully I pick the best one. I figured I would share this with you all who are in my boat, either hoping that upgrading to the 5s for LTE would fix your problems or holding out hope that Sprint gets it network up to speed. I am tired of waiting... I am out!