I am sorry for your experience, however the listing states clearly in the first sentence that this is the main floor of the house and then explained in detail that there is a tenant in the lower suite who takes care of grass/snow/etc (btw. he is not strange, he is a completely normal, considerate and nice guy, that is rarely home). There is no deception here as you called it, it's all clearly stated.
The listing on the other travel site is listed as 'SMOKING ALLOWED ONLY OUTSIDE'. That's exactly what it says. You keep missing details it seems.
The 'stale smell' I am very sorry for and it was most likely the heating that kicked in for the first time since April and the stagnant air in the ducts caused the 'smell'. That for sure disappears after a couple days of heat working, but I will have the heat ducts cleaned just in case.
The tap water in Calgary is bad EVERYWHERE due to chlorine content, not only in this house... I will check for any dysbiosis of the filter tank (that happened to cost $500, but thanks for advice to get an 'inexpensive real filter').
Yes there is a TV Cable with over 200 channels and I'm sorry that you didn't like it; I did have Roku box (as you said I should get), but Guests didn't know how to use it, so I went back to cable TV.
Of course I will try to improve the house even further based on your experience, regardless of how isolated it was, I always do!