i have stayed at both the DonJuan in Boca Chica and the Coral Carib in Juan Dolio. I enjoyed both for their beaches, but you must understand they are not the Rock Resorts or Sandals type places. Very limited choices of included restaurants and activities such as sailing and jet skies do not exist on campus. Both places have some what funky food. Coral Carib's food is better, but again, you are paying $100 or less or two....(you get what you pay for). Juan Dolio is a nicer beach, (more on the open ocean, a few less vendors than BC), but lacks the "nightlife" of Boca Chica. I put nightlife in "quotes" because my idea of night life is not what most are looking for in a week's all-inclusive holiday.
really if you desire the truly all-inclusive experience, you will need to head further east to La Romana I believe. There has been talk for years of upgrading the all-inclusive experience close to the capitol and las America's airport, but currently 3 and 4 star choices are limited or none existent. That said, for me and my budget, these afore mentioned places are fine.