I think acting can be very frustrating, and there's no experience that doesn't make you a better actor.
The way I personally work is I like to write what I know, what I feel, and also where I am.
The men were all scumbags, but the whole point of the film is to show the development of that. Each guy is going in there to have a good time. By and large, these men are career men, family men, and you just see the deterioration of them.