I have been a member of Lifestylelounge since 2001. I have met a lot of great people as part of a couple and as a single male. I will say that as a single make it is a little more difficult to connect with people, but it can be done if you are not a jerk and repectful.
By far this is the best site for swingers. The only thing I would say bad about the site is that they do need to update it with a newer style. The style they have has been the same since 2001, but the site is fully functional, with new features being added often.
Lastly, this site has the hottest looking couple compared to any other site out there.