George Brown College -- Siegfried's Dining Room
The last time I was at Siegfried's was a year ago, and I definitely recommend it, for a number of reasons. First, it's a great opportunity to participate in a learning experience of students at the Hospitality Program at GBC. The students prepare the food and serve as part of the training. Yes, the prices are very good, I can't remember what it costs, but they offer a number of set menu lunches and dinners (call ahead for the prices).
since it is a school, you must appreciate the food and service as work in progress, and expect some mistakes. Generally I found the food to be well executed, but there were obvious things that students were still working on (ex. the creme brulee's caramelized top was an obvious challenge, and one of our servers was really nervous - the students are constantly being monitored and I assume graded, so you could imagine the stress). The cuisine is mostly classic bistro continental, the space itself does not have much feel to it, but is spacious, well laid out and comfortable.
I think it's a nice experience to be amongst the next generation of cooks. Make sure you book early, as the place is very popular and often booked well in advance.
P.S. The Program also runs a bakery in the same building, where you can get very yummy desserts, cookies and breads, but get there early because they are usually sold out by mid-day.