We stayed in jennifers apartment for 3 nights, the apartment was exactly what we looked for, a nice and cozy place, with 2 big king size beds, heated, a few minutes walk from the famous kudamm street and close to the S train and the U train and bus stopes (we came directly from the airport with a bus and got of really close to the apartment). Jennifer is very kind, wellcomed us with fruits and chocolate and water, and answered all of our questions and helped us when needed. The apartment has 4 bikes and the price per night is fair.
I really recommend the stay, and for sure will recommend to my friends and family.