Utterly underwhelmed.
I, as many of the other reviewers here, was a guest at the W Hotel, and weary from a travel-day getting here. My group of three came in fairly late, although not close enough to closing that we were the last guests. It was at that point that I had just about the only pleasant experience at Otto - a kind and gracious hostess welcoming us and seating us.
The disdainful waitress who replaced her at our table seemed offended that she had to actually speak to us to suggest specials and take our orders, although she did do us the favor of leaving us alone and sparing us her withering glares for extended periods of time. The tuna tartare was quite delicious, but the risotto was mediocre at best, although given the amount of time it took for the dish to get to us I would have thought it was being prepared with great pomp and ceremony. Maybe they were preparing our waitress' dinner instead, as I noticed her eating through the glass divider while we were left forlorn at our table.
I put it plainly to the hotel's Resident Manager - I will always be a regular at the W Montreal, but unless things change I will never set foot in Otto again.