Do you think swinger relationships are healthy?

Teebaby
My fiancé and I are swinger we've been swingers for two years now and love it. We enjoy doing it and have complete understanding about each other's limitations and haven't had any problems concerning the swing life. We think it just brings a little more excitement into our relationship. Some people think it's not right and it won't last, but we love each other with all our hearts. I just think everything isn't for everyone. What do you think? Do you think it's healthy or not?