The quality of the materials is the lowest possible. The wood is poor, and the screws are manufactured badly. The assembly is hard because the screws are bad, the tools are cheap, and the engineering is horrible. Not recommending this item. 
it took more than 3 hours to build it. And the result is bad! On the photos on the website you can not see how it screwed: there is a whole metal frame under the desk, which will bother your legs when seated and working. This is a scam. Stay away.