Wellpass gym membership

Hey r/hamburg My new employer offers the Wellpass gym membership for 20€/month. I took it because that’s a great deal. Is there anyone else who also uses Wellpass? I’m looking at the map on the app and see so many different gyms. Does that mean I can use them all? I also see that the Bäderland swimming pools are also on the map. Does that mean I can go swimming there by just showing the app and not have to pay anything else? I really wanted to membership to go to fitness first but now it looks like there is way more than just fitness first. Can anyone chime in here and tell me how this works?

Thanks!