We had a great experience at Antons place.
The house was equipped with everything we needed. The beds were also very cozy and the house was beautifully decorated and extremely clean. There were clean blankets and sufficient towels provided, and we didn't feel the lack of anything. There was also a huge collection of CD and DVDs so we had a great time watching movies and listening to music.
The apartment is located in a nice and safe neighborhood and its about a 18 minute walk to the Charlotennberg palace. We also used the public transport most of the time and the station for the S Bahn was walking distance which made it very convenient to travel. There were also a lot of restaurants in the vicinity so there was no problem with food. The closest grocery shop that I found was Lidl and it was a 11 minute walk from the house.
Overall we had a lovely time and wish we would have stayed longer. Will certainly stay here again the next time we're in Berlin.