First trip to Berlin and we arrived at night. My advice is to be aware if travelling with children and infants, the apartment is about a 15/20 minute taxi ride from Berlin Central Station and taxis will only accept children in their cars if they have car seats (which at night they mostly don't).
Location of the apartment:
Apartment is in a more residential area. Public transport links are close and very convenient. No direct route to Alexander Platz that we could find but you only need to change once. (Same goes for Berlin Central Station).
There is a private supermarket near the apartment as well as a Lidl right behind it. The bakery near by does great fresh bread and there are restaurants very close by if you don't fancy cooking.
The apartment:
It is a ground floor converted shop space. Very convenient if you have young children and therefore pushchairs or just lots of shopping!
No living room (you walk directly in the bedroom) but a sofa is available in each of the bedrooms (this converts into a sofa bed, so we never really used them as sofas).
Boiler did stop working on the first morning, which took with it the hob (cooker) and TV (same circuit) so we did waste a couple of hours trying to get these to work. We eventually gave up and went out but Sören sorted it all out whilst we were out.
It is a small apartment (dining area and kitchen are small) but the bedrooms are spacious and having two toilets is convenient for a larger group.
Our group consisted of 4 adults, 2 children and 1 infant (for whom a cot was supplied). There is no high chair but there isn't space for one.
Garden to the rear is shared but lovely!
Kitchen is fairly well equipped and towels and linen were clean. There are even umbrellas supplied for your own use!
Overall, a great little apartment for a weekend break; we weren't there to sit at home so we really only had breakfast there and slept - otherwise we were out all day.