I just finished building an Ikea Kallax shelf, it only took me like 30 minutes, but 44 pegs and 8 screws later it turned out to be quite nice. Some of the shelves are aligned a bit crookedly, but that is just due to the quality of the pre-drilled holes.

I have put my camera gear on the bottom shelf, and filled the rest with some Diecasts and university books. I think It looks quite nice this way.