Just came back from spending a week in St Kitts, and it was an amazing vacation/experience at the Marriott. It is a beautiful and clean resort. There were always plenty of chairs available near either pool and at the beach which was a relief. The beach is gorgeous...you can't beat the views. The staff was very friendly for the most part. The restaurants on the resort are all pretty good, though pricy...no surprise there. We especially enjoyed the steak house (Royal Grill), and the lobby bar serves really great sushi. Also, the Calypso cafe was great for both breakfast and lunch.
The only thing is I would not recommend staying on a ground level room because of the noise you get from people walking around above. It sounds like loud stomping, even though I am sure that was not the case. Overall, fantastic trip...hope to return again.