Firstly, it comes in one HUGE box. We moved it in a space that we cleared for assembly and began to look over the directions. Laid all of the hardware on a table in alphabetical order. Then unboxed the pieces. 
After following the detailed pictorial directions, we were enjoying our new Haverly Sideboard in an hour. Most other reviews say that it took them almost three hours...I don't see why. It is very simple if you follow the directions and it is very sturdy. 
This was our first purchase with Wayfair and it was as seamless compared to any other online company. We are extremely satisfied with this purchase and plan to use them again.