The place was a hostel and not a private house/apartment as you would expect by using AirBnB. It's not that kind of experience where you stay in someone's else place and possibly get to hang out with them. Claudius and Barbara will meet you and give you the key and tell you about the house rules. Barbara is a very nice lady and will clean the room for you. After that, you won't see them anymore.
Remember to bring your own bed sheets otherwise you'll be charged €5 to get clean ones. I was surprised to hear that. I would have appreciated to be informed before getting there and finding out the hard way. Seemed a little like they took advantage of that.
When the room was ready, it was unpleasant to notice that the bathroom was dirty, probably because of other people who were already occupying their rooms. Nevertheless, I would expect the bathroom to be clean upon my arrival.
The WiFi was a bit tricky. The ID and password provided were wrong. The correct ones were on bottom of the router. That's surprisingly odd, but the hosts didn't make any effort to fix that for us, we just had to solve it by ourselves.
On the positive side, the room was spacious and clean enough. The place is well connected with the tube and there are a few bakeries nearby where to have breakfast or just taste local pastries and/or pretzels.