Full disclosure, I've only used the gym, walking path, and fitness center at the Oak Park CRC. (I…read moreuse the fitness center most of all.)
They've recently added machines to the fitness center which, while adds to the variety, also minimizes the space. There fitness center is quite small, clean, and has 3 sanitizing stations to spray down the equipment. There is also an attendee, or two, at the front entrance, and a couple of (muted) TVs. Unlike a conventional fitness center, there is no music played, so headphones are encouraged, and they don't have AC or fans. There are also small lockers available.
The walking path is exactly as it sounds. It's a clean walking path, with a few lanes, and a large clock so you can keep track of time. There is also a sanitizing station there, a couple of mats (for stretching), and a punching bag. It smells a bit like rubber, but that's due to the path itself.
The gym is divided into 2 spaces. It's a pretty standard gym offering volleyball, basketball, pickleball, open gym, etc. (There are schedules to notify you of what is available.)
If you're looking for a typical fitness center experience, this is not the place for you. You should not expect it to compete with, or compare it to, Planet Fitness, LA Fitness, Xsport, etc. It's a community recreation center. I've found that my experience varies depending on how many people are there and, more specifically, on what machines. As I stated, space is limited in the fitness center. I wish they did have a few mounted fans, or AC, to move some air around.