Opal on Queen West has shut down, one of a number of downtown eateries I've seen go under in the last month or two.
What I don't know is whether it's because the concept (jazz and supper all in one place) was bad, or because people are tightening up in general on their resto spending -- with resultant casualties among the weaker operations. Opal did get a solid review from the Globe and Mail's Joanne Kates in April 2007:
Sopra is a more expensive room than Opal: It suits its proximity to Yorkville while Opal fits in on Queen Street West. For my money, the jazz being about equal, I'd take Opal any day, thanks to good basic bistro food, sensitive service and almost unbearably lovely decor -- black and whites of jazz greats on brick walls, lit by cool napkin-draped hanging halogens with a "chandelier" made of white cards (all with mysterious writing on them) clipped to transparent wires fanning out from a central light. Opal is not luxe, but the passion for jazz, food and warm welcome go a long way toward the high notes.
Ah well. It's gone now.