Very convenient location, as most spas are usually quite far from the city. Clean and modern facilities. Being in the city, space is at a premium, but they make very efficient use of it; there are 3-4 baths, ample green spaces and lounge chairs, steam room and even a restaurant on-site.
At only 5 minutes from downtown, the experience at the Strom Spa, totally surrounded by nature, is awesome!
There's no other spa in Montreal that can offer you a true traditional spa experience like this one.
Try to stay later to see the sunset and get the evening experience.