Read, read and read. I like Snowdrop Hedgie's videos on YouTube... she does a good job of setting your expectations properly.
One thing to keep in mind is that every hedgehog Instagram account or listicle on Buzzfeed is only going to show you the cute, silly, and endearing side of hedgehogs. That's not any fault of their own per se, but what they don't show you is the less pleasant parts of owning a hedgehog. Namely maintenance of their habitat and bonding.
If you go in prepared, armed to the teeth with knowledge, I think you will do well. If you expect your hog to be grumpy at first, possibly for a while, that's good. If you expect a lot of poop, that's good.
This is the account I referenced above. Her videos are good, and her hedgie is so cute!