We cannot recommend this flat in Prenzlauer Berg enough. The flat has excellent transport links to everywhere you need to go. The S-bahn is a 2 minute walk at the end of the street which will get you to the airport in around 25 minutes, as well as a tram stop that takes you directly to Alexanderplatz. The flat is also well equipped with everything you might possibly need, and even has the basics such as oil, sugar, salt and pepper and came well stocked with teas and coffees. If you want comfortable, stress free accommodation then choose Michele's flat. (Also try Beakers for brunch, they do the tastiest apple-cinnamon pancakes and scrambled egg!)