Justen is a fantastic host! To accommodate an early arrival (noonish), he worked from home so we didn't have to go to his office to pick up the keys or schlep around our backpacks until later in the day. He even had some tourist pamphlets on the table when we walked in. He was also very quick to replace the air mattress since it sprang a leak the first night.
The place is exactly a described. It's located pretty close to anything you'd want to do. Walking distance to everything (if you consider 2-3km walking distance — I do), but if not, very close to some major bus lines, and the tram, which will take you pretty much anywhere in the city. the beds were good, the kitchen was tiny if you plan on making any food while there (we did not), the washer/dryer unit works well (we did several loads of laundry since we were on an 11 day Euro-trip). I will suggest using some ear plugs due to the street outside — it can get a bit noisy if you're sensitive to that.
All in all, Justen's is a great place to stay!