This Puerto Rican restaurant in Kissimmee has a warm and cozy atmosphere, making it a great spot for both casual and family gatherings. The food is a mix of traditional Puerto Rican dishes, with some unique twists, and the staff is attentive and friendly, with some notable standouts like Jonathan, who seems to be a favorite among customers. While the prices may be a bit higher than expected, the quality of the food and service justifies the cost. One potential drawback is that the staff may not always speak English fluently, which can be a challenge for non-Spanish speakers. Overall, Casa Vieja is a great option for those looking for authentic Puerto Rican cuisine in a welcoming and vibrant atmosphere.