I live in Seattle WA and I've had the same problem for the last 3 months of continuously dropping 4G, 3G, ect. It'll even go to 1X or just nothing except the bars. In July, we had friends from IL come visit us and they too are Verizon customers and they said they have been having the same problems in IL (Bloomington area) for about the same amount of time. They also experienced it when visiting here.
I really love this phone but it gets frustrating to be paying for this service yet it continuously drops.
I would be really happy if they could fix this issue, that seems to be happening all over the place.