Finally had a chance to try this place. It's definitely a small place, which cheap chairs and plastic tables, so it's not a place you go for the vibe.
The menu apparently changes every weekend. I had the Mofongo y Pernil, a cola champagne, and the flan. The mofongo was delicious, and the pernil was ace. And it was just $7 for the place, which didn't leave me hungry at all.
The flan was not homemade, which was a bit disappointing. And the cola champagne came in a can rather than a glass bottle, which I would have preferred. But I guess one can't be too picky when there is a Puerto Rican place a couple miles from home.
The whole meal was just $12, which is very reasonable. It's just too bad I can't go pick up my dinner here on weeknights...