Switch

Verizon works for me. Midwest gets slow but that's because of the ubiquitous "deprioritization" that all modern carriers refer to instead of increasing capacity to properly handle their customer base.

 

Different strokes for different folks.
I use cricket (cheaper than both Verizon and att). Only had issues traveling on 90 from MN to WA. I think att has same issues (they own cricket). My brother switched to Verizon once. When we were teaming (4 years ago)he was more often out of coverage then I was in lower states. He switched to cricket then.

 

I agree with Doealex, if you're switching then go with Cricket. Most of the drivers I work with have Verizon (we get a discount with them) but 1 switched over to Cricket and he pays a lot less. According to him, the coverage may be a little different but not enough to account for the price difference.