We loved our stay at Sirena Del Mar (Welker Resort). The resort is very nice, but not very big, so the feeling is very relaxing. It has all the standard features of a big resort (swim up bar, music in the evening...) but without the crowds. The unit was fantastic as well, overlooking the beautiful beach. And the beach is probably the best part. It is immediately out of the unit, and is calm enough for swimming, plus there is good snorkeling on either side of the cove. And because it is impossible to get to unless you are staying in one of the few resorts immediately on the beach, it is never crowded. We will definitely come back to this resort, and this specific rental, again in the future.