Most of my Canadian friends like Tim Hortons.
Most of my American friends do not.
I'm indifferent.
I don't do donuts, so I can't comment on their donut (or Doughnut if you prefer) quality.
Their coffee is on par with McDonalds IMO.

Speaking of that, years ago, Micky D's was the best place to get the bottomless cup of coffee for those that drank cup after cup day after day.
You got a Micky D's cup and coffee in the AM. They used to put out coffee pots on the counter. You refilled at any Micky D's all day long. I never did this, but many of my traveling friends did, and clued me in on that.
No wonder they removed the coffee pots from the counters.

You can do the same thing with Hampton Inn or any middle chain hotel that keeps coffee out all day. Just stop in with your Hampton mug and refill. Assuming there is a Hampton along the way. Most high-end chains do not place coffee out all day.