The Old Spaghetti Factory is close to my Company's Canadian Mother Ship (Shell Centre) and is a convenient place for a fairly quick and no-nonsense Lunch. I've been here several times over the years and have neither been disappointed or wowed. Some might argue that this is the definition of consistency and that's what some people want when they visit a new City. That's fine for Lunch, but in a City such as Calgary, there's too many good place to eat within a decent walk for me want to come here for Dinner.
The other trick on business trips is trying not to eat too much at a single sitting. After all, there's work to do in the PM. The Old Spaghetti Factory can certainly provide a big meal, but they also offer a soup and salad combination that has worked well for me.