The Sonder experience was basic. If you want a space that is very minimal in furniture, character, cheap in paper products, and sterile (in vibe), then this is the place for you! Oh, also, if you want to relive some college dorm experiences, then definitely book this place. I was not impressed with anything and the bed was incredibly hard. I did like the balcony though.
Check-in was fairly simple. The keypad can be temperamental so exercise some patience. Maintenance work was scheduled during my stay which was weird. Then another maintenance worker showed up unannounced at 9 pm to do something else, more weirdness.
The Sonder policies state no parties but they obviously don't check or don't care. I was there all week for work, and it was fairly quiet, until the weekend. Every apartment on the 4th floor, except mine, had a party every night until 2 am. There was yelling, screaming, laughing down the hallway and from room to room. It was truly like staying in a college dorm.
I lived in DC for many years, and know the Navy Yard neighborhood, so I can say this is a nice location. Book the spot for the location, not the amenities or anything else related to comfort or character.