This is my new favourite pupusa place in town! I've been to three other pupuserias within walking distance of this place and have decided that El Chalateco is the best. I always order the bean pupusas which have this perfect creamy texture, and the curtido and tomato sauce that come with them are fresh and delicious. The guacamole and chips are also really good and a decent portion size for an appetizer, although if you're vegan or dairy intolerant be sure to ask for it without cheese. (The cheese is sprinkled on top of the guac, but isn't listed on the menu.) The servers are super friendly, the food arrives quickly, and there's enough seating that I've never had to wait for a table even though it's always busy.
The only thing I would change would be to get rid of the TVs (they seem to be everywhere you look).