Lena's apartment was lovely for a quick stay in Berlin! Two of my friends and I stayed at Lena's place for three days this past August. Prenzlaur Berg was a very fun neighborhood with lots of coffee shops, cool bars and restaurants. The apartment was 2 blocks from the subway and less than a block from the tram. It was very easy to travel to Berlin's various neighborhoods. The unit was also very clean and trendy. Lena was communicative and accommodating, and she graciously allowed us to check in early. The only issue we had was with the futon for the third person--it has a bar in the middle and was not the most comfortable. Even so, we really enjoyed the apartment. Great value in a great location!