Piccolino - an hour+ wait
Tonight we had an 8 pm reservation for 4. At 9 p.m. we were still waiting. They had only one table in mind for us and those folks had just had dessert served to one of the four. The others were still drinking their wine. My group was tired of waiting outside. My group was not inclined to wait another 20 minutes. The person in charge told me that they always run that late, and that if I was unhappy they would prefer I not stay anyway!!! Very disappointing. We left and went to the Counter for burgers.
Did you by chance ask them "If you always run this late why did you allow us to make a reservation for 8 PM?" This sounds like more than slow eating by the group in front of you. It sounds like painfully slow service by the restaurant. It is a very small space. So probably no place to put you other than the one table you were slotted for. It certainly makes for a miserable evening when this happens.
ADD: You may be interested (if you had not been aware of it) in this ongoing thread on the NAF board: