The Plateau is the best spot to be in Montreal. It's centrally located and a quick Metro ride down to Old Town or up to Jean Talon Market. Best of all is you wake up to the best bagels at St. Viateur and come back for dinner at Au Pied de Cochon.
Tania's apartment is updated from top to bottom which is hard to find in the Plateau. And Tania and her husband were very pro-active during the whole stay from check-in through departure.
Hope the place is available on my next trip back. Je reviens a Montreal.