I agree with the '*@&%$' fan................ 
Seriously either be prepared for a full day's cleaning yourself, (before you put anything into the apartment) or get a builders clean done. I visited my place in October and it was filthy (everything has a film of dust on it - vertical as well as horizontal surfaces). Carol (angelbabe911 on here) cleaned it before any of my furniture arrived in Dec. I went out again in Jan to finish furnishing and am off out again in a few hours 