The Daniel Libeskind 'crystal' addition is really a gigantic cheap cubic zirconia meteorite with double-pane windows that has slammed into the ROM forcing the displays inside the crystal to struggle against its sharp interior angles. Has Libeskind designed anything in North America that rises above his ego?
With that said, the ROM's contents rise above all this silliness. It is Canada's great more-than-a-natural-history museum and it benefits from the additional space. More of the collection is on display. The dinosaurs look good and the world cultures galleries now offer a breadth that was previously missing.
This museum should be a must-see for any Toronto visitor. Just don't get angry as you try to figure out how to open Libeskind's silly entrance doors.