All successful companies have secrets that help to drive that success. For Walmart (WMT), the company is notorious for keeping prices low. At Apple (AAPL), itÃ¢Â¿Â¿s a leader in design and anticipating new needs of its consumers. At rapidly growing gym chain Planet Fitness, its secrets to its success are quite surprising. The company is finding some great, low cost real estate as a result of many large box retail stores closures, such as those at Office Depot (ODP) and Staples (SPLS). This real estate allows the company to open clubs quickly and at fair rent rates. Another secret is focused customer service, which aids in bolstering member satisfaction. As for the final few secrets? TheStreet's Brian Sozzi speaks with Planet FitnessÃ¢Â¿Â¿ Chief Financial Officer Dorvin Lively to learn them!