If only one floor is open, it's a total rip off. In this case, don't bother visiting the museum. Instead, just go inside to see the hall and see the cafe with the funky green chairs.
If the whole museum is open, it can be worth it. Otherwise, I'd recommend to go to the Taidehalli instead to see art from Finnish artists.
If you own or manage Museum of Contemporary Art Kiasma (Nykytaiteen Museo), register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.