Towson, your story is not surprising. I would have expected better when SBC bought AT&T, and there was improvements for a while. Their downhill spiral seems linked to their acquisition of DirecTV.

As for VzW, I'm surprised they didn't also require a business account. For the longest time that was the only way to get an assigned IP address. If you aren't connecting to your coach that wouldn't be necessary.

Several months ago my wife bought a data Modem, maybe an Orbit, from VzW. I was impressed how much better it performed than my new 5G phone as a Hotspot.