The show literally focuses on the night of the fire, and then on the aftermath. In terms of history, it is specifically, obviously, urgently, and absolutely about the fire. The singers are well-trained, experienced musical theatre singers and are, by and large, excellent.
What I didn't like
One review of the show on this page contains outright lies. What a shame.
My overall impression
The show is a sincere and mostly successful attempt to imbue meaning and context to a difficult and heartbreaking event.