I really enjoyed staying in Karsten apartment! I loved all the details on decoration. I liked how you can see the neighborhood through the windows and the option to close the windows for privacy. I had some problems with wifi, it was very slow but maybe was a momentaneous problem, the host was available to go there and fix it but I was hurrying during my day plan and preferred let it that way. I loved the blue walls on the toilet! Just one thing that I would suggest is to change is the curtain on the box (I don't like curtains on shower) and maybe add some light above the shower, a little too dark but this is just a suggestion, for sure a perfect apartment to stay in Berlin and I hope comeback in a near future. :)