During our visit in March 2016 we visited the bath as it was recommended and organized by our hotel and we are glad we did. We did not know exactly what to expect but had a fabulous time. The staff were very friendly and went through the procedure when we first arrived. They told our taxi driver where he could wait and contacted him when we were finished so he was waiting at the door when we walked out.
It was hilarious watching my husband and his size 13 feet (AUS sizing) trying to walk in the wooden shoes provided that were not really larger enough.
We would do it all again if we ever get the chance to visit Istanbul again and would again visit this historic venue. It was surreal sitting there thinking about the Hamam's history.