Verizon Wireless in our area (Southern NH) has been terrible and we've been contemplating switching as well... When I spoke to VZ Wireless about this, they said the issue in Southern NH has been they are swapping over Towers to 5G Ultra Wide which will take well over a year... That said, I'm still not convinced once all towers are upgraded that service will actually be better..... thus I'm just waiting for more pain...
Curious to hear how T Mobile works in the lakes region (or where it doesn't work well) as we are typically all over the lake like a pin ball