I've been part of a few meditation groups. You really have to find the right mix or it doesn't work well.

I personally prefer alone-time meditation to introspect and sift through my inner concerns and arrange my emotional situation.

However you choose to do it, meditation is a wonderful way to unwind and an app with nice calming music and imagery is one way to disconnect from the bedlam.

(said while typing on hacker news with the calm site on the other screen)