Great, budget stay in a fairly large apartment. The neighborhood (Friedrichshain) is a great neighborhood too, you're 4min from the tram and 15 from the ubahn. The orange walls of the apartment look better than they do in the pictures. It can comfortably fit two people in both rooms, so four total. Maybe even five if you use the couch.
The only issue I had is there was no body wash/soap (just hand soap), and check-in is tight because you only get a 30min window to meet the housekeeper for the keys. I was given 12:30pm-1pm (host was accommodating of early check-in which was nice), but was told at 12:30pm "where are you, the housekeeper needs to leave" when I was waiting nearby to not come too early. However I was able to get the keys fine at 12:35pm.
Overall I'd recommend this stay. It was well worth the money compared to the options in either worse neighborhoods or smaller stays in the same neighborhood.