The assembly instructions were clear.  But I ran into considerable difficulty when it came to attaching the last 2 pieces to the rest of the structure.   The two panels that had the openings for the wine bottles refused to fit into place, so I ended up having to loosen the existing connections and flexing the sides so that I could fit them in.    If a product is well made so that all pieces line up easily, then you should not have this problem.   Having said that I got it assembled and am now enjoying this.