Overall I found it to be a nice hotel. However there are some details that ruined the experience for me.
First, both TVs in the room were not working. I had to wait for a maintenance worker the next day. He said that the instructions were missing from the room; he got it working but even he couldn't fully explain how to navigate the TV system and channels.
Second, the furniture selection is AWFUL. The chairs at the dining table are absolutely terrible--with that style of chair it's very difficult to sit for any length of time because it cuts off circulation of the legs. I'm a healthy male who had a lot of work on my computer to do, and the chair was extremely uncomfortable to use. Unfortunately there was no alternative in the room. Also the bed was terribly lopsided (making me feel like I was slipping off) and very lumpy. I could not find an "even" area where I could lay flat with no bumps. The bedding/sheets felt like I was wrapped in construction paper. You need to replace it with much higher quality. Finally, the window shades were effective but the only two options available were total darkness, or total transparency. There is no translucent curtain where the sunlight can be let in without being visually "exposed."
These are small details; however it is this discomfort and inconvenience I have come away from my trip. I'm in Ottawa often and wish to use Sonder as my regular hotel. But if improvements are not made, I will be looking for another "regular".