We had a great stay at the Exeter Hotel! The staff service was above and beyond every single day. We were always greeted with bright smiles and attempts to help or discuss your country. In some ways, they are at the front lines to "sell" Iceland.
We loved that the lounge always had coffee. We loved the bakery connected to the hotel. I have to say, I wish that every hotel had a cafe like that. Every morning regardless of breakfast, we had access to a quick meal, fresh donuts and lunch to go!
The one negative was the gym as the machine you have is, for the most part, unusable. However, there were weights and that worked just fine.
The room was comfy and provided everything we needed. We loved that you've set up a "greenhouse" in the lobby as it was a nice quiet place to read.
And, of course, the location of the hotel was fantastic!!