Gym Pass

I am currently looking for the best gym for me to join. I tried to Bally and Equinox, now I want to try the gym at Chelsea Piers, but I want a pass, I do not want to pay and then not even like her. Can someone help me get a pass?

Usually if you tell them you will try on "that gym before you commit to join. I worked there for about 3 days before I became a full member:)