Great place to stay.
Everything was a described. Me and my friend came to see IFA in Berlin and this place served us well. Located strategically next to the S-Bahn, you can get pretty much everywhere in less than 40 minutes and often times even without changing.
There are many local places around and a kebab shop just around the corner if you arrive late and feel hungry.
Netto grocery store is in the same building, so food is covered, unless you're looking for a wider selection in which case all other major shops are quite far away, so you'd have to take a scooter, bike or bus to get there.
In terms of the rooms/flats - they were cozy and comfortable. Even though the building is located next to the main road, we never had issues with noise. All the appliances and utensils are there, and although the kitchen is small, it's convenient for quick meal prep.
A thing for improvement - a place, where guests could leave non-expiring goods for others, like salt, sugar, pepper, herbs etc. Cause you cannot survive without these basics, but I cannot imagine having to take 0.5kg of sugar back into my country and throwing absolutely good food is unacceptable. Yeah, that's right if you'd like to add sugar to your morning coffee, you'll have to buy a whole pack of sugar first...