We've been there twice---have visited other resorts in the Caribbean before and since, and still think it's the best so far. No complaints whatsoever. We've going to Riu Palace in Punta Cana on Tues--it's probably a 6* compared to Riu Merengue's 5*, and my girlfriend, who just returned, said it is better than Riu Merengue, which i find hard to believe. The Palace is also a few hundred dollars more. You may find the beach at Merengue a bit disappointing---in places it can be a bit rocky, but we did not notice this at all. The resort is isolated, with no other resorts around, so we went into Puerto Plata to do some shopping on the shuttle bus for something to do & see the town; hired a private guide, but it's a poor town, not much to see. The snorkelling trip on the catamaran to Sasoua (sp) is worth it apparently, as is the monster jeep tour, but both take a entire day.