Intimidating running in the established world?

I’m a DM with moderate experience running DND 5/5.5 and a little bit of Daggerheart. I’m a big fan of the Cosmere and have the books for the Stormlight rpg

My question for you all is about world building. To be honest I’m a bit intimidated because this world has an established book series that I also really enjoy; I worry a bit that I’m not going to match the themes or world properly. All my other games have used homebrewed settings (although I have borrowed a lot from settings like Eberron, but I see those as setting first then books after).

The system looks awesome and I love the books, but wasn’t sure how it felt running a game within the established setting. Did players have expectations set by the books? Do you find that your version of the world is significantly different from the cannon one?