Pros
Club OS, and by extension its parent company Evercommerce, encourage company culture. They designate monthly "culture club" money that goes to team events, paid lunches, and happy hours. If you like paid team events then you'll love Club OS. The company holds monthly all-team meetings which keep you in the loop on the company's revenue health and initiatives. All-in-all, a great place to work if you're interested in the fitness industry or like company culture.
Cons
Club OS tends to offer lower salaries and is reluctant to give decent raises, especially for positions outside of the engineering or account management teams. Club OS is a subsidiary company to Evercommerce, which means your job feels a little less secure as EC will choose to make cuts at the lower companies first. Additionally, Evercommerce is in a perpetual state of structural reorganization so you'll find the chain of command is constantly shifting throughout the larger organization. One day, your team reports to some guy in Denver then the next day that guy's gone and you never speak to him again.