El's place is amazing. Communication with the host was great and any questions were promptly replied.
The place is greatly located, only 100 meters from the tram, and a couple blocks from two Metro stops. You can be at most of Berlin highlighted within 20-25 minutes. There is a small supermarket on the same block that is extremely consciente and tons of little restaurants offering a myriad of different types of food.
If I am returning to Berlin any time soon I will definitely try to stay at El's again.