I like the various room descriptions that I have come across in the literary archive. It seems like there is a section containing books about nearly every topic that might be interesting to PCs. At the same time I find it a bit annoying that if i leave a room that is described as containing books about aircraft then immediately return it might now be all about weaponry.
I could also see characters with common interests meeting more often were rooms persistent. I could imagine multiple characters running into each other as they search for books on electronics. I know that some of my characters will spend hours studying fin the archives and it would be a fun if they would occasionally run into other characters researching the same topic.