This is a small and very charming place. The chef cooks inside the one room everybody sits so you can be sure your food is freshly made. ;)
I come here mainly for breakfast which is amazing. Everytime I visit the Yppenplatz I am torn between this place, the An-Do and the Cafe Club International. While the Club International is very down to earth both Noi and An-Do are more sophisticated with the Noi taking the lead concerning variety of things you can get. It is a hard choice every time though.. ;)
The one time I had dinner here I was slightly disapointed because I felt that my food tasted slightly boring. I might have had bad luck here though, because the general tone is that it's great.
Service tends to be rather sluggish and slightly unprofessional, especially on weekends in the morning when people sit outside as well and one person has to serve all of them.
None the less it's a big tip if you happen to have some time on your hands.