Overall, we had a great experience with Sonder and the room that we booked through them. Communication was good, sometimes we had to message them again to get a response, but I found that calling them is ideal. It's always better to speak to an actual person anyways! The place was huge, with big beds, overall a very clean place. I would recommend!
The only issue we had was that when we had to get into Sonder using our room code, it didn't work. A quick message to Sonder I'm sure would have fixed this though.