Carsten was a fabulous host and a very nice, pleasant fellow. Our flight into Berlin was delayed almost four hours and Carsten kindly accommodated us by meeting us in the apartment later in the day. When we finally arrived, he'd already turned on the A/C for our comfort. So thoughtful! The apartment is quite large and well appointed--it had everything we needed. We enjoyed breakfast on the beautiful terrace each morning. It's a top floor apartment in a beautiful and quiet neighborhood. I 100% recommend staying here.