I went to the Corner House again last night for a family event and I was glad to see that nothing had changed! Service was still great, the same cosy ambiance and the Prix Fixe menu is probably one of the best deals you can get close to Downtown Toronto.
They have a really good wine list and I also suggest trying the bottle of prosecco. It's quite a steal. I had the Niagara Prosciutto for my app, Black Angus Sirloin as my main and the Lemon Tart as my dessert. I had never had prosciutto paired with mini broccoli, but it worked quite well. The steak was delicious; lemon tart likewise--however, I didn't think the brulee addition on top of the tart was necessary as you already get a crunch from the tart shell. Just a personal preference.
Great spot!