We took a bit of a risk on this one as it was a new listing with no reviews, but we were very glad we did!
The flat was just as described and pictured. Very clean, spacious and recently renovated. Nice kitchen and bathroom. Excellent location in Friedrichshain, near plenty of bars, restaurants and shops, and a short walk from the nearest U and S Bahn stations. Owner was very helpful, helped us out on arrival but also sent clear info on how to get in so we could have managed on our own if needed.
It's on the ground floor, but there are shutters which give extra security and come down automatically at night.