I'm looking for Latin American food. Starting location will be near the West Loop or less then a 15 minute cab ride from it (no car is available and public transportation is not an option because one member of the party is on crutches). I'm not interested in Mexican at all or Spanish tapas- I want true blue Latin American, bring on the plaintains, though I wouldn't mind if the place also makes good drinks as we do have something to celebrate!
I've been to Nacional 27 before and only found it so-so, so would welcome other suggestions (unless its really the best try out there). Any other suggestions? I've heard Mambo Grill, but Metromix reviews seem very mixed so I'm unsure what to think.