>>126096122Fantastic in my limited experience.
It comes with one divider, but can fit three. Enough space on either side to have some wiggle room, but not beat up your books.
I've seen the long versions start to pop apart at the corners, which is why I decided to superglue mine together. Which I'm pretty sure was a good idea, but if you do the same you'll want to do it outside, or by an open window with a fan on high.
Fumes like a motherfucker, and you'll want to let it air out for a while before you fill it. I didn't, and now one of my bags has some white residue on it. Comic inside is perfectly fine though.
Also, find some stickers or something for it, otherwise you've just got a black box. And spring for the three pack, you'll need them.