Goofy entertainment and some perfunctory live sex
It looks like there haven't been reviews of this place posted in years, so I don't know if there's any interest in one (which is reasonable given the US-centric TUSCL audience). But I did a sort of speed run of Amsterdam in between destinations and figured I'd share some notes.
Moulin Rouge is in the (in)famous Red Light District in Amsterdam, which is centrally located not far from the train station or the big palace. Everyone walks there from somewhere else, as the street doesn't really allow cars or even the ubiquitous bikes. The club was one of two places that were obviously advertising live shows, along with Casa Rosso, though there were others with live-via-video and other advertisements.
The entry fee was 40Euro. When I first arrived it was fairly early, a bit before 7pm, and they let me in mid-show. They told me to come back for an evening start at 7:45pm for the full event. Inside the place was small (a recurring theme in Amsterdam) with a very small elevated stage. There was a bent couch on one side and then rows of short couches on the other, almost like a theater, including a bit of elevation for the back rows. There was a small bar wrapped around the bent couch, with some seats on one side facing across the bar to the stage.  It did not feel seedy or dirty; everything was in good shape and clean.
There were several waitresses getting drinks before things started, as well as throughout the show. I just got a water. I don't recall how much it was, but it was under 10E.
For my first visit there were two acts (remaining, not sure how many there were total). The first was a fit blonde who did a striptease with some talent. She failed to drum up a volunteer for the rest of her performance. Once nude she lit a candle and sort of played with it, though without dripping any wax. She ended with a perfunctory roll onto her back and shoulders, and sticking the base of the candle in her pussy for a second or two. She seemed pretty irritated at not getting a volunteer.
The next act was also a fit blonde, who also did a striptease on the stage out of her lingerie. She managed to get a volunteer up on stage, whereupon she pulled one of those infinite colored streamer things out of her pussy. The guy on stage slowly reeled in foot after foot as it emerged like the traditional clown/magician trick.
When I returned for a full show, it started off with the same blonde from the candle act. This time she got a volunteer, but instead of a candle she stuck a marker in while squatting over the (de-shirted) volunteer and wrote on his chest. The audience was much livelier than before and cheered the shenanigans, while the guy seemed pleased like a bachelor pulled up onto a strip club stage to be spanked by strippers.
The next act was an older and thicker, but still reasonably fit, brunette. She pulled three people up (two guys and a woman) and used them to gradually pull off her clothes while fooling around. She motorboated them, smashed them in the face with her boobs, smashed their face into her ass with a hooked ankle, did some fake doggy-style sex, etc.. It culminated with a banana held at, but not in, her pussy and getting them to take bites. She worked the crowd well and got lots of good-natured cheering and laughs.
Beyond these novelty acts, there were two "live sex" performances. The first was a thin woman and big guy. They kissed a bit, then she dropped to her knees, pulled down his shorts, and started blowing him. After the "sexy fun" but nearly sexless acts prior, it was a bit startling to just have a porn starting right there in front of everyone. They did some doggy style, then got down from the stage and repeated some BJ and standing doggy while out in the theater. The woman did a decent job of acting like she was enjoying it a bit. The guy seemed bored, and mostly lost his erection by the end.
The second sex act was a thicker woman who came out in a leather outfit carrying a whip. I don't think she could have been less convincing with the whip; she acted like she'd never held one before in her life and had no idea what it was. She was shortly joined by a heavy guy in a vaguely BDSM-like shirt covered in zippers and carrying a chain. There was a brief "act" of taking her whip, chaining her hands to the pole, and removing her dress. Then that all went away and they got to it, starting with a BJ and moving on to doggy style. This couple never left the stage, and did a few more positions. They both looked immensely bored, though he was able to perform.
Overall, the Moulin Rouge show was a novelty. A couple of acts were entertaining in a side-show, audience-participation sort of way. The stripteases were reasonably artful. The sex shows themselves were attention grabbing, in that I'd never witnessed other people having sex before. One of the four people looked like she was having sex, and she was interesting to watch. The other three were just sort of there and going through some sex-like motions. It's a thing, and I don't feel like the time/money was wasted, but I don't think I'd go back.