I would recommend Frank's place if you are looking for a cute spot on the peninsula. It is a little far from Placencia Village, so would most likely require a car, but there are still some restaurants around and the beach is right across the street which is amazing. Also, there is a family of iguanas who live on the property. Frank himself is incredibly friendly, checked up on us throughout to make sure everything was OK, and was incredibly helpful when things weren't working.
Why I took away a star is just due to some maintenence that needs to be done. The cold water tap didn't turn on in the kitchen which was interesting since it worked in the bathroom. Also, there were some issues with the gas burners for the stove staying lit. They would randomly go out even if we kept hitting the pilot light so it took a long time to boil anything. That really only affected us our second day and Frank said he is going to look into what's going on.
I would definitely stay here again!