I really enjoy Madison's downtown public library branch!
The architecture is lovely! The staff is lovely! The selection, from technology to snacks to books is lovely! The spaces to work range from the ability to work privately, individually, socially, to in a group setting is all possible.
The self check out is also fantastic!
Is it awful of me to mention the loitering? Well... I don't really mind it, to be honest! I just wish the library's entrance wasn't crowded with people loitering so frequently.
MPL's main branch is a Madison gem, and so is the entire MPL system!