Booking through AirBnb, we couldn’t use the CitizenM app to check in by ourselves, but the process was easy when we arrived. They have screens set up for checking in and out, with a helpful concierge. Loved the cool technology, art, and rooftop view of the Capitol. Went out on the Wharf nearby- great shopping, restaurants and entertainment. The room was a cozy, clean, modern refuge for us to come back to. Great shower, safe, mini-fridge- everything we needed!