Jobos is fine for beginners on the inside, where the larger sets are reformed to smaller waves, but watch out for a wicked rip current. The current goes really strong from left to right (if you are standing on the beach looking at the ocean). You don't want to be sucked into the big nasty reef/rock outcrop at the end of the beach. If there is sizable swell, Jobos is a good place to head if you are a beginner.
Marias is good too - but watch out for the reef, look at where other people paddle ou (there is a key-hole in the reef you can get through), but watch out for the submerged airplane engine