I don't imagine too many people go out of their way to come here, but rather come here because of where it is. At the end of Santa Monica pier with outdoor seating, it probably gets a lot of wanderers (which is how I ended up there).
I dread to think how busy it must get around Mariasol during the summer, given the busy lunch service on a sunny Saturday in March.
I took a seat inside rather than wait for one outside. I ordered cheese nachos and a cocktail called a Mariasol Special. The cocktail was nice but it was just a watered-down Bahama Mama or Sex on the Beach type of drink. The cheese nachos where H U G E. Great value for money but I had to leave most of it behind. It tasted fine, but not terribly exciting. Because of the busyness, it all seemed a bit mass-produced.
Service was fine, given that the servers were running around so many people.
So, if you're hungry and nearby, try Mariasol. But head back to town if you want something a little less frantic and a lot tastier.