We stayed at the end of June and loved it. There were five of us total, my wife and I, and our kids 20, 18, and 16. The place was clean and comfortable with all necessities, exactly as advertised.
The proximity to restaurants and shops was spot on, with dozens of options only a short walk (along a beautiful creek) away. The owner was gracious to have provided entry into Banff National Park for us and it was used every day of our trip. If we are ever back in Canmore, we would definitely consider this property first.
The one thing I would advise any potential renter is that the building seems to be almost exclusively used for vacation rentals and is also not yet complete. There is construction on this building, and several neighboring buildings, everyday...something to consider.