Clean equipment also promotes good hygiene. In the event that a staff member is not available, signs near the equipment will help to remind you how to properly use it. If you are new to exercise, or haven't exercised for years, it will be helpful to have someone advise you on what type of exercise program would be best for you. They can suggest classes you could take that you would enjoy, and are at the appropriate level for you. They can also advise you on weight training and using the cardiovascular equipment.
Variety can improve adherence to an exercise program in the long run.
Make sure the faculty offers programs that you are excited about. You want to make sure the classes that appeal to you are convenient to your busy schedule. If you don't like those that are scheduled for your free times, you won't go, and that means less value for your dollar. To prepare a class that gives you a safe, effective workout, an instructor needs a good grounding in exercise technique. An exercise certification from an organization such as ACE, ACSM, or AFAA indicates that the instructor has basic knowledge, or better, in the areas necessary to teach a quality class.