We had three nights in the apartment, arriving late the first night and Lena couldn't have been more helpful and clear in her instructions of how to check in. The apartment consists of three rooms - a bathroom, a very basic kitchen, and a bedroom/living space which is big and airy and would be comfortable with three people sleeping in it. The location is brilliant and close to bars but also nice breakfast spots - check out the blog Still In Berlin for good breakfast spots in Prenzlaurberg, we found a couple of great ones and more to find still. The Kulturbraurei (spelled wrong, I fear) had a small Christmas market, but with lots of Gluwein, of course, which was a real first night find and got chatting to lots of people there. Also The Guardian's best Currywurst is found 2-3 mins from the apartment at Konnopke's Imbiss, at the big crossroads right out of the building. If you want a drink, there's a lovely and lively bar that also sell burgers just ok he left as you start walking down Kastienalle, and just past it is some more good fast food, a kebab shop that sells great Vegetarian kebabs. Just to prove we had more that junk food, the Prater Garten, this end of Kastienalle does traditional German food - pricier but worth checking out, and booking.
It's an apartment good for a short stay, though maybe not kitted out for a longer stay where you stay in and cook, as I sometimes do. Also, there's no entertainment system so make sure you bring a speaker and a laptop for movies. All in all, an apartment in a great location with a reliable host which in itself makes the apartment worth booking.