Checkmat Corona BJJ, located in Corona, California, is highly praised for its welcoming atmosphere and knowledgeable instruction. Reviewers consistently highlight the sense of community, supportive environment, and the instructor's ability to make learning jiu jitsu accessible and enjoyable. Many describe the gym as a second home, suitable for all skill levels and training goals. Overall, it appears to be an excellent choice for anyone interested in jiu jitsu. For more information, please contact the school directly.