I've only tried it a few times, the most memorable from a South American restaurant in Brooklyn - very rich broth, red from tomatoes, spicy, but light/thin with a real depth of flavor. Giant hominy kernels, shredded chicken, onion, fresh cilantro. What a delight.
Got some to go from Purple Cactus in JP and it was a fine soup for a healthy meal, but of course did not at all compare. The broth was too heavy. The chicken were grilled chunks of breast meat. No fresh herbs.