Has anyone here experienced with swinging?

And if so, how was the experience(s)? And would you do it again?

And those who havent, why not?

Also, if you have done it, where did you meet the other couple or single, and where would you recommend and not recommend to meet them. [sites, places, e etc, anything]

I'm asking because I'm thinking about doing a 3some with another girl with my boy (because I am bi and I miss being with a girl, lol]