there is one other review of le senateur, but I ate at another restaurant with the same name but address is 24 rue saint-paul, vieux-montreal
I was with a family of 10 and finding a table at the cute little restaurants is impossible. Also, I wanted a broad, fairly priced menu. This restaurant fit the bill on all accounts. The best lobster bisque and filet mignon. They had a prix fix menu for $26 which was excellent. Included options of the filet mignon, pasta, etc.
If ever in montreal again, would definitely seek this place out.