It was fine because: singalong! But maybe "so that happened" is more apt. The style and quality were not to standard expected. This was a band playing in front where we could sing along if we wanted. I expected a bit more audience interaction, e.g. audience singing parts, sharing narrative about ABBA, making up stories to go with songs, etc. There was no variety in sound, pace, beat, loudness (even for Ballads) – it got too much. Then they put in Saturday Night Fever tunes.