I have just returned from Costa Caribe this week and it is a very comfortable resort. The food was presented nicely and it was good. The staff was attentive and always ready to serve in a timely manner. The animation team (resort entertainers)is the best in the area now in my opinion. They have many people on the team and they all work extremely hard to make sure you have a good time. I personally do not take part in the activities because I enjoy more taking in the sun and relaxing. I did enjoy watching them entertain other guests at the resort and talked to many of them about thier hard work. The shows at night are not the best in the area but they definately do the best with what they have available to them. Check in was extremely fast for the DR.
The room was recently renovated, comfortable and cleaned to perfection every day. As for your questions about excursions that is usually a personal preference as to what you like to do. I like the trip to Saona Island the best. I suggest you talk with the tour reps available when you arrive there and then decide. The price of the tours has gone up considerably in the last 2 years and many people have stopped taking them for that reason. Any more questions? Feel free to ask. Also you should keep in mind that June is not high season so maybe you will find the resort less crowded and not so many employees working there at that time of year. I will add though that usually occupancy is 100% in January but during the week I was there it was more like 30% during the week and 50% on the weekend.