Didn't come with any assembly or fitting instructionsalthough it's not hard to work out.
Before putting shelf fixing bolts into shelves tighten up the inserts wirh a large blade screwdriver otherwise you may find that the shelves remain loose even when the bolts are fully tightened.

Looks good on the wall but the top shelf especially won't resist attempts to bend it downwards.

Not entirely convinced this item is worth the premium price compared to very similar much cheaper alternatives