picked this little book up for my 3.5d trip to montreal, and it was just perfect - both in size and detail. it's organized by neighborhoods- what to do, eat, play, drink in those areas. it's a concept that works well since that's how i tend to explore cities anyways, and this pocket sized book fits perfectly in my coat pocket.
it's not helpful for hotels, but i prefer to do that sort of research on tripadvisor beforehand anyways. i also would not recommend it for exploring quebec city - which is barely a page or two afterthought stuffed in.
for those visiting montreal, the two things the book didnt have a chance to update:
1) 747 express bus from the airport - run by the city, it's CA$7 per trip, but you can pick up 1 and 3-day passes which cover both the airport bus and all metro/buses in the city. it's a service that just started mar2010.
2) bixi - montreal has this awesome bike sharing program where you can retrieve and deposit a bike at outdoor stations throughout the city. the city's also planned plenty of bike lanes to keep you safe.
enjoy!