One of the bigger reasons I switched to Verizon was specifically coverage. There are a lot of areas (wyoming, dakotas, parts of idaho and northern utah and nevada) that I drive through where Verizon is the only carrier with any coverage.

I couldn't be convinced to switch to Fi, and frankly given the horror stories, not sure that I trust google should I ever fall afoul of their platform exclusion and zero support or transparency.