Yelp featured this spot recently, and I went out of my way to grab lunch with my family on a Saturday. We had a the canoa, yuca, mofongo, tostones, empanadas, pernil, and pollo frito. Everything was amazing and authentic!
Staff is bilingual and friendly. It seemed every other guest was Hispanic, which is a sign of the quality Latin American experience. They seem to offer night entertainment (bands, etc).
This place certainly qualifies as one of the best Puerto Rican restaurants in Arizona!