Given my very recent experience with Air Canada, I can assure you they are NOT looking for suggestions.
In response to my terrible experience, instead of appologizing - Air Canada Customer Care rep Colette Nixon wrote "I am very sorry we are unable to conclude this matter to your complete satisfaction, and I truly hope you will reconsider and allow Air Canada to serve you in the future. I am proud to say that under the leadership of Mr. Rovinescu, we have been bestowed with several top awards by Business Travelers Magazine, these include - Best North American Airline for Business Class Service and Best North American Airline for International Travel."
So glad they are telling me that I am wrong and that their accolades in various magazines are the proof. Just incredible!!