I stayed in Tallinn for one night. I arrived by bus and left by plane. The place was in a perfect location. Just a 5 minute walk from the bus station and about a 25 minute walk to the airport. Also about 20 minutes walk to the old town, so no need for taxi or bus. It was clean and had all the necessary things. There was a water kettle, but no tea or coffee, which would have been a nice addition, something that I always include for my guests when I host.
The place has a hostel feel to it, but with no central, main room. I think there are several rooms, and I don't think I stayed in the one that I saw in the pictures, so that is something to consider.
Allar explained how to get to the place when I sent a message the day before arriving. His wife met me at the door and showed me around. We had no other interaction and I left the keys in the morning.
All in all, it is good quality for the price, I think, and I would recommend it for its cleanliness and location.