I feel like Red Cup Cafe has gone down hill since the first months of operation at M.
Originally the place was 24 hours with some sensational graveyard specials and super friendly staff.
A few months later they are now closed at 10PM, even when the casino is PACKED and the staff seems to be robotically reading from a script - which is OK, but not quite like the overwhelmingly welcoming atmosphere I had become used to.
Food quality can vary and it probably depends what you order. Sometimes it's great, other times merely average.
The biggest winner about the place was the 24 hours and the graveyard specials - now it's just another middle of the road quality cafe - and one with a rather limited menu.