One of the "test subjects" who was invited to spend 24 hours in the new BB house (among some other media representatives and local celebs) was
Wilma Ruohisto, a reporter for the local tabloid
Ilta-Sanomat:
Here's her account on her experience:
https://www.is.fi/tv-ja-elokuvat/art-2000006221001.html
The article is in Finnish but
Google Translate does a pretty good job translating it to English if you copy-paste the text into the left-hand box. (Copying the mere URL and then clicking it on the right-hand side does not work with IS.fi while it works with some other sites.)