Fits well into my space, I painted the back green. It's very easy to customize just the back if that's something you want to do. I would suggest sanding it first before painting, I got a little impatient. The shelves ru-vid.comUgkxM8H4CjCb79vzeyvgaFMdzmLm88oVFPMkare pretty small so keep that in mind if you're going to have it horizontal that some books won't fit. I like the snug look that it has. Good small shelf if you don't have much space, but not too small. Simple to put together, though you'll need your own tools, a screwdriver and a mallet/hammer, it's easiest to do with another person.
I have the same Ikea cube shelves!! Did you wall mount the shelf? I loved how you organised your shelf btw - I have my funko pops in my shelf as decor too hehe