"Bar Association" is one of my favorite episodes!
Mine too! I liked the ending with Rom making the smart choice and breaking away from Quark.
Also, it gave a glimpse into Ferengi culture. Despite Quark's mini-speeches to the contrary, Ferengis were not above using violence to preserve their way of life. They sent goons to rough him up just to preserve their accepted way to do business and convince him to do things the "Ferengi Way"