They got exactly what they say, so you won't find any surprise at all.
The communication was very easy, the place is quite and the location is perfect. We were 4 of us: 2 adults, 1 child of 9 and one baby of 1.
Remember that they don't have elevators. You have to count with that specially if you have to carry with trolly, baby and baby stuff ;-)
If you need an simple place to stay in Berlin well communicated and you are not boder for sharing spaces, this is your place. I recommend it for you.