Heike & Heinrich's apartment is exactly as advertised. It was sparkling clean and well appointed, but the wifi was a bit patchy. Being able to use Heike's laundry room was great as we are on a long road trip and had a big bag of washing to do!
Public transport options are good with a bus stop very close and the train to the city is about 8 mins walk away. Being able to park our car on site was a huge benefit and saved us expensive parking fees as well as time and traffic stress! We also used the train to go to Potsdam for a day and it was fast and easy.
There are small supermarkets in walking distance so buying provisions was easy. There are also quite a few small restaurants within a 10 minute radius.
Heike is very warm and friendly and is a lovely hostess. We really enjoyed our stay in her apartment and thought it very good value and very convenient, so would recommend it for a Berlin stay.