Asking a question for my mother-in-law. Both of us are heading to Europe in the next couple months, on different trips. I plan to activate an international data package with T-Mobile before I go. I've read that T-Mobile has great coverage in Europe (but please correct me if that's wrong!)
She has US Cellular. She recently went to a store and asked about activating international coverage, and the sales lady quietly mentioned that a SIM card purchased overseas would be a better bet. Although a generation younger than her, I don't feel confident enough to help her navigate this, although I told her I knew about it, and I also know she could purchase one on Amazon and set it up either right before she leaves or when she arrives. She has VERY limited time to spend at the airport upon arrival.
Would her US Cellular international coverage be okay for occasional use? She will be on a cruise along the Rhine. Thank you for any help you can provide us both :)