Fair enough - I know in Europe it's no big deal, but it seems like network operators are much more regional in SE Asia. Only going to be in each location a few days, which is why I'd prefer not to spend my time looking for the best SIM card.

Appreciate the feedback all - I'll check into t-mobile. Can I truly just sign up without a contract and cancel after 1 month? The plan sounds almost too good to be true - I may have to consider switching if the coverage is half decent here.