I just came back from a stay where I did one night in the Canopy and one in the Konsulate. Although there were higher-end finishes in the Konsulate, I liked the Canopy more. Neither hotel had meaningful Diamond benefits. (Canopy gave me a bottle of water and a "book" about Reykjavik). Rooms were similar in size, though my room at Konsulate was awkwardly shaped and had no desk. Canopy has a better breakfast- more items (both hot and cold), coffee at the table, and more people working. The location of the Canopy was more central to nightlife and in the middle of the city, whereas Konsulate felt more tucked away. Konsulate is also surrounded by construction right now. There are no views at all from Konsulate rooms. Top floors of Canopy does. The one thing that Konsulate has that was great was the bath house in the basement - a large hot tub and sauna with chairs to relax. Both are nice hotels but neither will be on my list of memorable experiences.
Also, this thread made me have high expectations for the "local tasting." It's supposed to go for an hour. I went 25 minutes in, and there was nothing but Gull beer left to taste, and there were used tasting spoons strewn everywhere.