Cici, i doubt it was over 30 minutes for them to figure out your bill...perhaps you are mistaken? They are very busy and as a business cannot hold tables, of course they need you and your party to be on time, otherwise they are losing money! Aziz, the whole point is a group dinner, if you hate eating with strangers for sure go elsewhere! They do not hide the fact that it is a group meal, get over it bud;)
I have been going here for 35 years and love it, i have met some cool people in the group dining atmosphere and love the fact that we actually speak while out for dinner!