I noticed that I got a 4G signal in several areas that I didn't before.
I had no hand off problems from one tower to another on my commute this morning, and I usually do.
I had no 3G to 4G or 4G to 3G transition problems and I sometimes used to.
I can't say for certain after just one commute, but I seem to have radio improvement.
You can't see it, but I'm smiling.