Vacation use best practices?

I have a dishy that I used via a roam subscription while on vacation in west Texas last year. My service has been off since then. In April I’m heading to Guatemala for a couple of weeks. The wifi at my Airbnb is unreliable according to reviews. I’m considering taking my dishy as a backup. Anyone know if I can do residential since will only be in one place? Or would I have to do roam again? Also I assume since I activated my account in America the regional roam would work instead of the global plan.

Any insights are appreciated