I'm sorry if this sounds like a stupid question, but aside from assisting with PS and providing continental breakfast, snacks, etc., what exactly are the responsibilities of a concierge? We've stayed in tower club at CR and really didn't use them for PS or anything else other than some drinks in the morning and in the afternoon. We were thinking of switching our GF LV to concierge but have heard so many bad reports. Is this service worth the extra money? What is reasonable to expect the concierge to assist with?