This is a separate apartment on the lower level of a very nice, contemporary house on a hill. However, it is not what you'd normally describe as below grade - all rooms have nice, full windows. It has a lovely walk-out patio with a seating area and a great view of Puget Sound. The furniture is in very good shape and comfortable, as are the beds. The bathroom has a nice counter for keeping toiletries. The only thing that might limit someone who wanted to use it for a long-term stay is that there is no stove; only a microwave.
The host is exactly what you'd want him to be - available and responsive when needed. If we are planning to come back to the area, we will start our search for a place to stay by checking if this apartment is available. We recommend it without reservation.