Today I had a day out and listened out for the Next Stop Announcement updates as I said I would last week.
I didn't find the service announcement annoying at all, even on the 21 which stopped regularly. The only thing that I would suggest, if possible, is that the gap between the completion of the terminating stop and the 'where this bus terminates' be reduced.
RE: Go North East: Latest News & Discussion - July 2018