Went to Marben on a Wednesday night. There was enough people to have a nice ambiance. The food was okay at best. We had the charcuterie platter, oysters, Jamon Serrano and the Patata bravas as appetizers. The charcuterie platter featured 3 choices and had nothing special. The patatas bravas were also just okay. The Jamon and the oysters were great (but how can they not be, there is no preparation involved). We also ordered a salad that they forgot to bring us.
I had the burger as a main, again nothing special.
Overall the food was very average, the waiter was kind of annoying... He kept calling me "pal".
I would go to plenty of other places before going back to Marben.