Ineffective room service, no replenishment on items that are finished at breakfast. So if you decide to go for breakfast later than 9 o' clock the most common thing is to find the service disks empty of goods (no bread, no salami, no fruits, no omelette, no napkins on any table), noone to refer to.... but if you finally find soone to mention that things are missing she only replenishes one thing at a time and no more...