The assembly took an hour. Super simple and probably had 20 pictures to show you what to do.  Comes in 3 boxes and is a combination of particle/veneer and rubberwood I believe. Solid construction and pretty hard to mess the install up.  What is great is the wine holders hold magnum bottles!  Be prepared though, the shelving prevents you from having 2 rows of liquor if u have that much booz. I ended up using the farthest bottom pegs for the bottom shelf and highest pegs for the top shelf for the middle shelf to have the proper clearance.

Don't hesitate to buy!