I just dropped my ATT’s grandfathered international in favor of Fi and TMobile. My wife and I have gone to semi-retired and I could no longer justify the $320 a month we were paying for this plan and the separate voice plan with PAYG texting and a huge bump for the limited North American calling plan. It pained me and I am second guessing myself. We have TMobile Magenta Max 55+ and on my phone I have a Fi flex plan with data SIMs that I managed to get before Fi scaled back to four. My wife has one of the data SIMs in her iPhone 12. When we go abroad, we turn data roaming off on the TMobile lines and both use my Fi.
I should probably change my handle to “Detroit Stu” at this point.