I like colonnades too but this one was a bit too enclosed and always felt a bit sketchy - more so now with shelter hotel folk. Toronto used to encourage these kinds of walkways but now more and more are blocked by cafes that they no longer serve their original purpose of being a sheltered walkway. The more recent idea is glass overhangs, which are usually filthy and of very little protection against rain.I found the Colonnade here interesting and pleasant and always liked the feeling while I walked through. This being one of the only places with a European feeling in TO and thought with our harsh winters there should be more attempts to protect us from the elements while out. I never thought of this as dingy or gross but quite the opposite.