Iberostar Costa Dorado is nice.
A group of us with kids ranging from 5 to 15 years old went to Iberostar Costa Dorado for a week in the spring. The rooms were somewhat dated and basic, but the food was surprisingly good in the buffet (never tried other restaurants). We never tried the kids club but noticed very few kids were there so I imagine that unless more children participated, it probably would not be too popular for the children. We spent most of the time in the pool and some at the beach. We bought the rooms on Expedia which was much less expensive than buying them directly from the hotel (I went over to check in person). Overall it is a good hotel for a family trip and I guess that I would rate it a two or three star and we will go back again. As long as your expectations are realistic, I think you will enjoy the property. Have a nice trip.