We will be there during Spring Break, we are in our 30's so we have slowed down alot. Its not that we are looking for peace and quiet, but we aren't as good as we once were when it comes to partying. Is the Ambiance the place to be, for a couple of old folks. LOL
Just got back from there about 3 weeks ago. Very nice and quiet then. Best beach in town. Feel free to PM me if you have any questions. Im 35 and going back ASAP!!!
The Ambiance Villas sound perfect for you, it's the hotel I'm recommending most these days, calm and peaceful (you'll have to leave the hotel to party if you wish) and by far the best beach in Cancun. Enjoy!