Nix the Nexus
I was in Seattle for a large wedding and many guests booked at the Nexus due to its proximity to the event. We needed to be dressed for the reception by 6pm. Check in was 4pm, but we didn't get a room until 5:30. We were checked into the wrong room twice and had to move. The bar surcharged Canadian cash 25% even though the Cdn dollar is above par to the US dollar. 
The breakfast room was standing room only, with a filthy carpet. There was nothing healthy to eat except an apple and an orange. Nothing but starch, sugar and fat. Scrambled eggs were long gone by early birds.
The second night of the booking was lost even though we booked months ahead and reconfirmed the booking before we left. 
They forgot to clean our room the second day and we had to go in search of towels. Cleaning staff were yelling in the hallways and left their cart blocking the path so my mother couldn't get past with her walker.
I am not blaming staff. They were very nice. But this hotel is out of control.