I was at Munich Westin last week, titanium, had 4 rooms booked under my name, was told at checkin only my room had access to the lounge, and only my room had free breakfast in the restaurant, which i all verify was true, only my room key got into lounge, which we were all upgrade to the lounge floor, and a person in the lounge was asking everyone about room number and knew how many guest in each room. Never had this happen before in Europe or anywhere.
overall, the lounge was nice with decent European style spread, but more importantly, free beer and wine. Breakfast buffet in the restaurant was really good!