Quang's place is exactly as described by others and his communication is kind and efficient. I found the location great, right next to the park, 5 minute drive from Magnolia centre, and a 10 minute walk to Ballard, plus easy (and free!) parking as others have said.
The space is exactly as pictured, the bed was very comfortable, and there were a decent amount of electricity plugs around the room (somehow this never gets a mention but I think it is an important point worth noting!). The only minor point I can think of for my stay was that the phone reception inside the room was virtually non-existent - but the internet provided was very good. All in all, lovely place, would love to stay again.