I feel this was reasonable value for money. The apartment was very clean, and Kasia gave us some great tips on where to go, but the apartment lacked what we needed. I should have contacted Kasia beforehand to see if we could check in early. They aren't flexible with this at all, which is difficult when travelling with an 8 month old baby. We were up at 530am for our flight, but had to wander around in the rain until we could check in at 3. We were so exhausted that the first day ended up being written off.
We stayed for 5 days, but we're only give one towel and one facecloth each for the duration. The bed was very hard and uncomfortable - I wish we had taken pillows.
There was no TV, but we were able to hear the neighbours until after midnight every day.. There was no iron, but Kasia kindly gave us hers to use.
It was likely the previous guests fault, but the grill pan inside the oven was absolutely filthy (everything else very clean).
The apartment is smaller than the photos suggest, and isn't quite in the heart of Prenzlaur Berg as we hoped, however its on a great transport line with the tram and subway just outside, as well as two supermarkets and a kebab shop (not much else though). We walked half an hour to Prenzlaur Berg for coffee in the morning.
We wouldn't stay again as its too small for a family of three, but good for a solo traveller looking for somewhere cheap.