First, we waited 50 min to get our breakfast. Note that the cafe was almost empty (2-3 other people aside from us) and we didn't order anything special. Then when we got our food and asked the waitress whether they had ketchup (for our fries, nothing extraordinary, really). She was clearly annoyed, said "no", and rolled her eyes. The veggies and the grapes in our breakfast were covered with dust, but the waitress said, "it is normal" (is it, really?!). I can't say that their coffee is super-good either.
The other food was tasty, and the terrace is nice. Still, never again: there are many more places in Plateau and Mile End with yummy food and beautiful terraces but where the staff is friendly and the food isn't dirty.