When I booked this place, Katherin messaged me to make sure I understood it was a unique space. It was exactly as I wanted and as I expected. The room is perfect for a single traveler looking to share common spaces in a beautiful home. It is indeed situated under the sidewalk, but there is a lovely window that lets in natural light. People walking overhead made me glad I brought earplugs. The shared common space is excellent. Clean, comfortable, spacious, and warm. I loved meeting Katherin's other guests (there are two other rooms she rents out to travelers) and her cats. I used the kitchen to warm up food and there was a lovely cereal/toast bar in the morning. The bathroom was a dream. Location can't be beat for central London. Restaurants across the street are amazing! Truly five stars.