Been to Cozumel several times both before and after Hurricane damages. We love both Chakanaub and Paradise Beach. We try to go to Paradise when the grandkids go because they have more for them to do and got to Chakanaub when it is just us.
Since the Hurricane, Chakanaub has done a lot of work, but I would recommend the beach shoes for wading into the water at either beach. There is a lot of rough cement in the lagoon area at Chakanaub and it can be hard to navigate.
We downloaded the discounts for Chakanaub in October, but our taxi driver gave us a better discount on the way out. With his discount, we also got a food/drink coupon and two free t-shirts.
Been there - done that:
2005 Holiday, Sensation, Conquest,
2006 Conquest, Celebration, Holiday,
2007 Freedom Grand Med, Holiday
2008 Fantasy & Sensation,
2009 Fantasy, Holiday & Dream Grand Med
2010 Fantasy and B2B Elation
2011 Monarch of the Seas
2012 Booked - Breeze from Barcelona 12 days