Niavaroni Kickboxing Inc, located in Roseville, California, has received mixed feedback from its members. While some reviewers praise the gym for its positive environment, effective coaching, and significant results in fitness and skill development, others express concerns about the owner's behavior and management practices. Overall, many appreciate the supportive atmosphere and the quality of training provided, particularly for beginners and youth. However, potential members should be aware of the contrasting experiences shared. For more information, it is recommended to contact the school directly.