My husband and I took a tour of Hedo 2 when we were staying across the street at Grand Lido in 1999. At the time I was glad for the tour, but also glad we were staying at Grand Lido.
In 2004 we stayed 7 days at Hedo 3, it is newer but has the disco, trapeze, and nakedness everywhere that is the same as 2. I was a little shocked because I was pretty prude I guess at the time. I had never seen people using a sex swing at the pool before and I had never seen one girl finger another while she was standing on the bar and I had never seen a woman stroke her husband in the hot tub. (I actually have not seen those things since either :smile
Needless to say it was eye-opening. If you are open minded and relaxed you will have a good time. If any of that stuff freaks you out, you don't need to worry because you don't have to be a part of it. There are lots of activities and all the people we met were very nice. I hope you have a really great time.