Why, you say?
I believe the following pictures are more than enough to make anyone think about a change.
We first thought of changing the parquet. After seeing the "thing" that was beneath it we decided to throw in a new screed too.
I have no idea what the old one was made of or what it looked like in it's original form but now you can easily break it with your bare hands.
Seeing that I don't find any pleasure in getting my foot stuck in the floor because of this let the new screed pour!!!
Everyone hold up your champagne-glass for this apartment is a newborn!