Unable to answer "What are the opening hours here?" – Küche 3000 (Kitchen Design Store) – https://osm.org/way/178462991 via StreetComplete 63.0:

Da war wohl mal Küche 3000, steht jetzt leer. Nebendran gibts den TEDI.

Attached photo(s):
https://streetcomplete.app/p/339461.jpg
https://streetcomplete.app/p/339462.jpg