Waiting for LTE is frustrating, but Sprint has always treated me well, their customer service improved drastically a few years ago (they went from "no" to "yes"), I think if I hang in there, so will their service.
The cabinets and antennae in Delaware off of London Rd. were done weeks ago, change is in the air. I really don't have any service problems anyway, I just want to see "LTE" on my Note 2!