and my definition of "the best" is = above standard, either her looks, or her service is quality wise above the standard
what is the Canadian (Montreal Toronto) standard?
assuming you are clean, well groomed
assuming you hire from a reputed agency or independent
==> you will get the woman in the picture, no B&S
==> no pimp at the door
==> you don't have to worry about your belongings being stolen
==> she won't be drunk or high
==> she will be clean/ well groomed
==> she won't be "distracted" during sex, no texting, watching tv,
==> she will be OK on kissing, BBBJ (some exceptions), DATY, MPOS (assuming enough time), cuddling
if that definition satisfies "quality" then you are all set, but short notice also means you won't be able to guarantee picking the exact woman you wanted, but more whoever is available when you call.