Incredibly clean - "Japanese-standard"-clean. Very tidy, and Patric send me clear instructions ahead - he took the time to explain me whatever I was asking. From Arlanda, I chose to go by local bus + train, so after I got to the place within 1 hour 10 mins. Everything was clear. Patric met me, and he was explaining whatever details I needed. Shops next door. Access to train and bus right around the corner. Lift to his place. No noise at night.
His place was big, comfortable, the room was clean, private and I got lots of blankets. His place was well-heated, and I could use the kitchen freely.
Altogether - the stay there made a great base for my visit in Stockholm.