If you pick this place because you want to stay in the Friedrichshain area, you will definitely like this appartement! It breathes the atmosphere of F'Hain! It's for adults only, I wouldn't bring my children., but we stayed with friends and then this is the best place to stay. Bit of an adventure to find all the peculiar items in this appartement.
Also very spacious and though everything looks and feels old/ vintage it was all clean. I have no real downsides to think of