I joined Mountainside last year and decided to join the Core Concept group for personal training as the then director was convincing. I did see some results I was happy with but for the most part recommend DO NOT SIGN UP with Core Concepts. First I had the issue with "missing then mysteriously found payments" for monthly sessions. Gave them the benefit of the doubt after that since appear d to be resolved. When I signed up, the then director only signed me up with sessions that would expire when my membership expired or so I was told before I signed the contract, yep that was not the case. Was told have a delinquent balance that need to be paid in full to cancel this now despite what was initially told. Told will make arrangement to pay this 'so called balance' and be cancelled. Will never, ever sign up for membership here or with Core Concepts again. Was promised ending the training sessions would end with my memberships and it hasn't. Good luck to anyone who signs up with them hope you have better luck than I did.