A fun bop, but I believe in my heart that @TrueBeliever gave this an 11 for reasons largely unrelated to the song's relative merits. Gurl, I understand and wonder how many of us have similar life associations with specific Abba songs? Also, I'm sorry about your mother.
I actually praised the song for its joyous tone, harmonies, and instrumentation; and then included a personal anecdote. The song has merit up the wazoo, as far as I'm concerned.