My first stay at a Sandman chain hotel in general was this location. My visit was for 3 nights so I got to know the surrounding area a bit too considering I've never stayed in Longueuil before. My office is in Boucherville and I've normally either stayed there or in downtown Montreal in the past. This particular location was the best of both worlds for my last trip because while it was a bit of a drive to the office (not just a few kilometers away) it was really close to downtown Montreal just across the Pont Jacques Cartier.
The biggest bonus of this place I can think of are both logistical. One it's right across the river from downtown so if you're driving you are close. If you're driving you will love the fact that place will not charge you for parking. You will use your hotel key to get in and out of the lot which is normally a pay lot for everybody else that uses it but it's free for guests at the hotel.
The second logistical advantage is that there's a subway transit station right across the street. I didn't use the transit once since I had a car but the area is basically a school (Sherbrooke University Longueuil campus). Nearby there is a mall with a Target and about a minute south there is a La Belle Province. There are some other places to eat nearby as well but I did most of my eating by the office in Boucherville or in downtown.
The hotel itself is comfortable. The elevators didn't take as long as I thought they would and the staff are polite, friendly and yes they are very fluent in English. There is a restaurant/bar accessible right from the lobby but I didn't go there except to borrow a fork to eat my poutine that I had bought from La Belle Province.
The room was a decent size and the wifi worked ok for me the whole time I was there. One of the things I wish I had were more English channels on the TV. Besides that I had a decent amount of channels to watch and most of the US networks had channels from Burlington, VT.
I liked this location and I will perhaps stay there again the next time I have to spend some time in Montreal since it is neutral to where my office is and the proximity to downtown as well as the free parking.