I was a Cheetah member for a year. The gym is nice and clean, but I wasn't using it as much as I had hoped. I contacted them at the end of my contract, within 30 days before the renewal (per the contract).
I spoke with a manager about canceling my membership and he said to fax in a written and signed cancellation request. I jumped through their hoops carefully: wrote the letter, signed it, faxed it in.
Now, 4 months later, I found out that they've continued charging my credit card for a full membership AND have added fees on top of that because they couldn't run the past month's charges because my expiration had passed.
I contacted them today to help them figure it out, and the manager wanted me to play even more games with a special registration specialist. The gym might be clean, but their billing policy is shady and they're unwilling to correct their billing errors. Steer Clear!