I have no problem with LTE at my house. Constant 4G/LTE in and out.
At the ATL airport, its a different story.
I can understand the frustration.
As I said before, Sprint should say something in Astricks that 'LTE no available in all area and full implentation by end of the year', etc etc
Everybody expectation is set too high.
My friend got Verizon and we are inslde the building and he got 24 mbps download and 12 mbps upload. I am waiting for that day Sprint! Please come soon!