I occasionally use the Hilton Garden Inn Montreal for business trips to this area and I've never had a bad experience at this hotel.
The rooms are clean and well equipped. The bathrooms are very modern and comfortable.
The bar area is small, but has a good atmosphere and selection of refreshments. The bar food is also very good.
Breakfast is a little pricey, at approx. $15.00 for the cold buffet and approx. $20 for the hot breakfast, but it is very good quality. I always prefer a buffet for business hotels so I can eat and leave in a hurry if required.
Parking is underneath the hotel, and can be difficult to drive around in a big vehicle. However, I've always been able to find a space for my car. The only real problem is the traffic outside during rush hours, which can make getting in to the parking area a bit of a challenge.
Overall, I think this is the best value hotel in Montreal for business trips, or for short breaks.