The wife and I tried it a few times but never really became a thing for us. The two of us would just end up having sex on our own, sometimes with spectators.
Quick story and why it kind of left a bad taste with us. We went to a swingers club in Mississauga several years ago. At the time, it was owned by a husband and wife couple who nicely showed us around when we went there on our first night. Kept talking about how no means no, no pressure, etc. As the night went on, the wife and I pretty much kept to ourselves as there wasn't anything that interested us. As we were leaving, the owners asked us to come to their private table where they were entertaining a few other couples. The male owner was all over my wife, touching her without any sort of consent, etc. At the same time, the other owner comes up to me, takes my hands, puts them on her breasts and starts making out with me. I kept looking over at my wife and saw that the guy was making her very uncomfortable and she had this disgusted look on her face. I pushed his wife away and grabbed my wife and left. Those two completely ruined the experience for us, and they were the owners!
We went back a couple of times after that when we heard that the couple no longer owned the place. But it still kind of sucked. Like someone mentioned above, it was an older, not very attractive crowd. The type of people that go nude on a nude beach, the ones that shouldn't ,lol.