I was a little worried before I arrived that Yearn's apartment couldn't live up to the description on the site as it just seemed too good to be true but it's just as gorgeous as the photos suggest. It's big, light and airy. The bathroom's very nice and the highlight is the balcony, which gets sun for most of the day. Yearn has clearly put a lot of thought into the decoration, furniture and comfort of the apartment.
The neighbourhood is convenient for getting to other parts of Berlin - easy transport connections - but is also a lovely place to relax, with lots of nice restaurants/cafes/bars.