I really was drawn to this bookshelf for its design.  When I got it, I found it mostly easy to put together myself. The directions it came with were ok but could've been more descriptive.  Once, I figured out the directions, I was able to put it together fairly easily. I think it took me between 1h 30m - 2hrs. I think with a bit clearer directions, you can put it together faster. 
I think the wood is possibly plywood, but its thick and seems durable. The medal cylinders might be aluminium, when screwed in properly it's good and sturdy. I also like that the metalic cylinders are magnetic (handy for extra decor or magnetic lights).
The shelf is a bit smaller than what I was anticipating. It measures 4ft tall x 2ft 7in wide. The shelf length from cylinder to wood is 2ft 2in wide and 1ft 1 1/2 high.
It's still a really nice piece. I like it alot.