I ordered 3 units (see pics) they arrived in good time and in perfect order. All boxes clearly marked and with easy to follow instructions. I started with the smallest and worked my way up. The larger piece needed two persons to help construct and three to hoist it into position. It is very heavy . . .
Two small issues were the amount of force needed to get the interlocking sections into place, especially with the larger shelf. I had to use considerable force - nothing was damaged and all slotted together perfectly. But you will need a good wooden mallet. It should come with the red felt blocks!!! The other things was the care needed to but the back plates in, once again on the larger shelf these could get very tight indeed.
When all is said and done I bought these to replace Ikea shelves and the look, design, and build all say I made the right decision. 100% recommended.