The first time I had BMB was in downtown (the dundas one near Ryerson) couple years ago. It was a lot busier, and I remember the Banh Mi stuffed with meat and veggies. This time, I got the Duck Confit Banh Mi and Kimchi Fries. The Banh Mi came in your regular huge Viet bun size, enough to last me a meal and half. It was still stuffed with all the veggies but the meat seems to reduce significantly. I still prefer the sketchy Chinatown Banh Mis a bit more, for a cheaper price too. Kimchi fries were good, will probably get them again when I go back.
It's not a tiny store, they have couple seats and tables around the restaurant. It gives off a "fast food restaurant" vibe but you'll definitely have to wait longer than that for your food.