We really had a terrific stay here. I knew we had gotten a good deal when we booked through Expedia, but I was somewhat concerned when I read from some reviewers that the hotel was getting a little run down. All I can say is..NOT true, at least not any of it that my wife and I saw.
From the lobby, to the restaurants, and especially the rooms! All up-to-date, clean, modern and well decorated. The rooms are huge and the beds (we had a king room) are very comfortable. The rooms all have a balcony. Ours, off the back, looked out over Rue Crescent, one of the busiest areas for nightlife in the city.
This hotel IS the center of Montreal, and Club Thursdays seems to be the busiest club in the city. The bar and disco are packed from Thursday to Saturday nights! Amazingly, Thursday seemed the busiest. Happy hours duting the week go from 5 - 8 PM and the bars are jumping. Good music, BIG drinks, great people. We found the people of Montreal extremely friendly, and the hotel staff were anxious to help in any way. I'd give this place 5 stars in all categories, and highly recommend it.
Make sure to try Le Beaue Jolies (sp?) restaurant, upstairs from Club Thursdays, and get the buffet breakfast in the upstairs lobby/restaurant...both excellent. That's the best part of this hotel...you really don't need to leave it, but you should. Montreal is a great city, and there's tons of things to do and see (weather permitting, and we got lucky with an early spring heat wave the 5 days we were there).

First of all, this hotel is in a great location in the Centre-Ville section of Montreal. There are many restaurants and bars very nearby,
as well as good shopping (according to my wife). The guest rooms at the Hotel are very large as is the bathroom, which had a double-vanity and separate shower stall and bathtub. The bed was incredibly comfortable, too.

The staff at the Hotel were all very nice and accommodating. You can convert currency right at the front desk and the concierge went out of his way to make restaurant suggestions and highlight some areas we may want to see as first-time visitors to Montreal. All in all, I rate the Hotel de la Montagne an "Excellent".

The staff was extremely rude and unhelpful. The rooms were nice enough, but we were uncomfortable staying in a place where the staff talked down to us and were unwilling to assist us/make basic adjustments, etc.

Great downtown location. We valet parked the car undergound ($17/day) and walked . Only about 5 blocks to the Eaton Centre and 1/2 block to St. Catherines St. It was good and cold so there was no 'strolling around'.

An old style 'grand hotel' with very large rooms which were nicely decorated. Huge bathroom. The ecclectic lobby was cozy with big leather couches and chairs. Ideal for reading the paper and watching the world go by.

The staff, everybody!, was VERY freindly and all switched between French and English effortlessly.

Happy hour in the lobby 'caberet' during the week was really 'happy'. Order one drink and they deliver two. It also had 'low key' entertainment on Friday and Saturday.

Buffet breakfast was wonderful and there is a great restuaruant and bar in the same building but through a short tunnel. It was a very quick walk to many other dining experiences.

The Interent access is wireless and free.

Only negatives were that you could only get ice through room service and there was no place to eat between breakfast and dinner without going out. No big deal.

We were there Feb 23-26/07 and paid $101 CDN+taxes per night. Wow! (winter rates? ... I don't know)
Great experience. We would go again... in fact, we will.