I changed to T-Mobile from Verizon last winter, just before leaving the US for the Bahamas. I had a 50 GB - $50/Month plan, and they changed it to 100 GB when I asked, back in May '24. The problem was, 100 GB was not enough for my wife’s soap addiction - so I opened a new line in September - initially 50 GB, they will change it up to 100 GB next month (I will have to call to do this). Also, I get $5/mo per plan off because I use Auto-pay.
Service is not quite as good as Verizon up in New England and around the Chesapeake, but its adequate. With my Peplink Router, we were almost never out of Internet from Florida to Maine.