Here's an image from sensorly with the area I'm talking about. Route 3 is near the top of the screen and runs east-west, route 21 runs north to south and runs into route 3.
It appears that there are "3 bars of darkness" for a majority of this area. I don't really expect to get LTE in the areas that are very faint because it's still getting rolled out, but I at least expected something.
On the ride I almost always have 5 full bars of service, with 4 bars on occasion. But, the data speed is still sorely lacking. I can't use instant-streaming apps like IHeartRadio or iTunes Radio, and while I can use Spotify it takes a long time to get buffering and will get interrupted about every other song.
Thoughts?
Edit: Sorry it's so small. Not sure how I did that. I can try and make a larger image if that's too hard to read.