Reviews consistently praise Tomatillo for its authentic Mexican cuisine, vibrant flavors, and welcoming atmosphere, especially the tacos, ceviche, and margaritas. The location by the waterfront offers a relaxed setting with outdoor seating, though some find the portions small and prices steep. Service quality varies but often features attentive staff like Tina and Tamara. Despite occasional issues like slow service and inconsistent staff attentiveness, the restaurant is favored for its delicious food, lively ambiance, and good value for those seeking genuine Mexican dishes in Singapore.