I visited this restaurant out of curiosity just because it was relatively small and looked like a family owned. It was everything I hoped for! I prefer local family style food everywhere I go instead of fancy super expensive (and usually very small plate or food for the money) chick restaurants.
Calypso and its owner Felipe were exactly was I was looking for in Cancun: excellent family style food, super friendly personnel and cheap too! Not everywhere you can have a big seafood soup plate with lost of lobster, whole shrimps, crab claws, fish, etc for about $12 (depending on the exchange rate) in the most touristic area of the Yucatán Peninsula!!
I wish I had discovered this place earlier. I ended up going there my last two days in Cancun. Definitely would go there again.