It's my understanding that timmys coffee tastes as good as it does because of the high temperature of the water AND only timmys sells a coffee maker that produces that high temp. Being a consumer of large double-doubles I always thought it was simply the coffee and cream.
$1:
I have bought their coffee and coffee maker and the at home version just isn't the same!
I'm surprised at that as their coffee maker is probably the most expensive.
I spoke with the manager of a small timmys in a small town in northern Ontario a couple of years ago. His location sold over 10,000 cups of coffee a day. Huge pedestrian and vehicle line ups. Not much profit in baked goods due to labour costs. People have noted of late the decline in taste of donuts. This is due to the stores no longer producing them on the premises as they are now trucked in frozen and simply baked.