Stayed as a family of four while vacationing. The resort is in two hours of driving from Saigon, on a beautifully landscaped beach property.
I think the general idea is great. This is a very good location for a seashore resort. Facilities look brand new, and staff is very (sometime exceedingly:) attentive and friendly.
Yet, I got an impression that the business people who run the resort don't fully understand who their competition is, and thus don't yet compete successfully. The resort is build for 200+ people. We barely saw 20 during our stay, and that's during the high season for Western tourists in Southern Vietnam.
First, while resort was virtually empty, no room fitting four members of our family was available. I had to reserve two rooms, which cost almost twice as much as I would spend to host my family on the beach in Hawaii or Bahamas. That's not because the rooms are small - they are plenty spacious - that's because of the resort policy.
Second, the food was overpriced for Vietnam by a factor of about 2. Lunch price was comparable to one in Hawaii or Bahamas. Yet the transportation to Hawaii or Bahamas for us costs about one-third of the cost it took to get to the Carmelina resort.
I suggest the resort management to look at the whole value proposition for Western tourists. Face it, Carmelina is located far from the cold places where people with money live. Drop room rates and food prices: this will compensate for transportation, and you'll see plenty of visitors