I can only say what happened in my congregation.
Firstly, the campaing to deliver the invitations didn't cover all the territories so many 25%-30% of the invitations are stocked in the Hall and a lot of brothers said they haven't delivered all the invitations they got. This is happening in a foreign language congregation where there are bible studies. Elders are so worried that the Service Overseer insisted me yestarday to fake the numbers in the books to appear as all the territories have been taken by the brothers during the campaing and not to receive a complain by the CO during his visit next week.
And then, the spirit of the celebration was very grey. We had a visit from abroad of a couple that used to be in the congregation serving for years and no one wanted to have dinner after. Brothers were as in the rest of meetings during the year, nothing special.