Kim's place is in a great location for exploring the city - a 15 minute walk in either direction for Old Montreal and Downtown. You can also reach the entrance to Mont Royal park in under 30 mins. The pictures of the apartment are accurate - the thing to note is that an office block is right across the street so you are overlooked all day unless you keep the blinds down. But that makes the place pretty dark as the lighting is a bit too subtle.
We got a taxi from the airport which is a $40 flat rate to Downtown - the bus is cheaper (I think $10 each), but it's around a 45 min walk to the apartment from the bus station.