That's pretty good and it's probably a lot cheaper for them to maintain than cables, installs, repairs, trees on lines, etc. They don't have that in my area because we're in area with 1-2 bars max. However, now Verizon FIOS is $49 per month and $10 for Apple music family. Thought that was a good deal for now and I'll keep looking for their 5G home internet.
BTW, does the cell router have the ability to connect and work through a mesh system? I need coverage through out our home---one router won't be enough.