Loved the apartment. Was perfect for us four singles on a long weekend trip. Had everything we needed in the kitchen, including milk, coffee, bottled water, etc. and there are a couple of supermarkets a short walk away if you want to make your own meals. But only a short walk to restaurants and bars including a nice Italian place a few yards away.
Just a 10 minute walk to the underground from where you can use the excellent Berlin public transport to get to anywhere in the city quickly.
Martin is only 5 minutes away if you need anything and he will also store your luggage if you are travelling late in the day, as we were.
Will certainly stay here again if staying in Berlin. Great value.