The flat is perfectly located in Friedrichshain, just near Ostkreuz station. So it was easy to visit Berlin during the day thanks to the transport and really easy to walk to clubs by night as main clubs are located in Friedrichshain.
The flat is functional, fully furbished, it was perfect for three persons. I have a good communication with Agnes who replied quickly to my messages. However, I suggest visitors to bring their own shampoo/shower gel as they are not provided by Agnes.
I suggest this flat for any group of friends who wants to enjoy Berlin!