I really enjoyed my time in this apartment.
Apartment:
As other guests have stated, it is akin to a long-stay hotel. Everything was very clean, and the building was well-maintained and secure. I didn't find it noisy, but appreciated the white noise machine and earplugs they supplied. The bed was very comfortable and I was actually able to cook meals in the kitchen.
Location:
The location was excellent as well - blocks from the waterfront as well as walking distance to some nice landmarks (Tudor Place, Dumbarton Oaks). There were many food options and a nice coffee shop nearby (Baked and Wired). I didn't see a large grocery store in the area, and went to CVS for water and other small items.
Administration:
My interactions with Sonder were positive as well. I had to contact maintenance because the shower was draining slowly and they came the next day and fixed it. Also, I had to extend my stay a few days and they were super helpful. I would definitely stay here again.