To me the actual book section of Oodi is not particularly interesting/inspiring/impressive. It's not bad, but it is pretty mundane and gets overshadowed by all the other stuff going on in the building.
Famously the actual main library at Pasila has a much larger book collection. Oodi is more of a community space / show piece.
Oodi was noted in the media to be particularly unimpressive when it came to actually having books back when it opened.
Fair, but it is part of a pretty large library system and you can order whatever you want to pickup at Oodi
Well, book collection of the particular library doesn't matter much nowadays since you can order a book online and it will be delivered to your closest library. So it's more like a public space.