I don't like CS' to be honest, but I've found them an excellent tool for getting on the same page with your RP'rs, or prematurely figuring out you won't be getting on that same page. If you don't have a lot you need to be on the same page as with your players (post length, setting, power level, etc.) you don't really need a CS. Which are fine roleplays, but cater to a different audience.