I like it, but...... it should work off your "friends only", "invite only", "public" options on your player screen. That way the ones who want to solo can "invite only". The ones, like myself who enjoy my friends just jumping in, can set it to "friends only" and run it with another ar two. Those who need help can set it to "public" and get the run in so they can get their coins/rewards. I personally think this is brilliant and if successful could be transfered to other aspects of the game.