It should work anywhere as long as an internet connection is available at least for Roon to do a license check (I think about every 30 days?). Someone please correct me if I’m wrong.
Regarding music streaming service integration, I see Tidal is available in the Dominican Republic, however, Qobuz is not.
Normally this only means that you can’t subscribe from this country. It doesn’t prevent it from working for subscribers traveling from other countries.