We absolutely loved staying with Jana!
The location was perfect, right in Mitte! A five minute walk to Alexander Platz, to Hackescher Hoefe, and to many great restaurants, cafes and shops. The room was beautiful: large, spacious, clean and nicely decorated. The bed was large and comfortable. The bathroom was comfortable also, and shared by Jana. The kitchen is usable, but you have to walk through Jana's bedroom to access it, so understandably, can only be used between 8-20:00.
She was a very accommodating host, providing us with a map as well as recommendations for places to eat and things to do. She was more than happy for us to chill out with her and her son.
I would highly recommend staying with Jana!