Stayed here this past weekend. Beauftiful resort. The Casita suites are wonderful!! 850 square feet and can sleep up to 6 people. There's a shower plus a tub and two sinks. You can request for a small fridge to in the room as well. Anything you need, you can call and they'll bring to you. It's awesome! And everyone is soo friendly. The casita suites have a pool in the area so that you don't have to venture over to the main pool that is crowded. There's nice plush little sofas that you can lay out and relax in.
My one knock, is I wish they had free internet. Shoot, if you're paying so much already, why not just throw it in. It's $15 a day for internet. Boo!
You really don't have to leave the resort as there is enough to do if you really are trying to get away from everything and the intention is to do nothing. However, if you want to leave to resort the Fairmont is in a great location and it's pretty easy to get anywhere from here.