I know there are plenty of posts on topic and I have read them all. Looking for some opinions on the value of the Cancun to San Pedro route.

From a cost perspective it looks great when just comparing airfare, but after you add in bus + ferry + overnight stay + lost time, unless you are really into the Mexican countryside is this an adventure to be recommended for my family of 4?

I will have a Belikin -- put it on klcman's tab.