Lena's apartment was perfect for our stay in Berlin.
The location is ideal. It's very close to all the hot spots and yet on a very peaceful, relaxed street. There are a few gorgeous ambient bars open all hours and the market hall is directly across the road - a great place to sample some good, fresh, local produce.
The apartment is completely spotless, a fully equipped kitchen, very organized and super comfortable. The little balcony is also great feature where you have a little table to enjoy eating outside. The apartment is on the first floor so safe without too many stairs. The bathroom is modern and clean and has a really great powerful shower :). We would love to stay again and would highly recommend this place