Having never had an arepa before, this was quite the nice experience! The service was friendly and had a very genuine edge to it, as if the people there were really excited to be serving arepas to us. My arepa was perfectly warm and filled to the brim with cheese, avocado, and beans. I loved it! I'm not usually a fan of beans but they were cooked to just the right texture -- not too soft. The three accompanying sauces they provided -- garlic and hot sauces, I believe -- were also delicious and I had a good time dabbing just a little hot sauce onto each bite.
I think the hardest part of the meal was just trying to be neat while I ate! I would definitely go back. It's not very expensive and the meal will fill you up. (I'd also suggest grabbing some alfajores for the road when you leave.)