simple, as described and shown in picture, love that it has different hight options. The only thing I disliked was that it was packaged in a huge box with several of the nuts and bolts free floating around in the box, and there were some that were squished into the styrofoam so I had to rip the whole huge box apart and inspect all of the styrofoam to ensure we had all the parts... big pain in the but.  But it assembled easily thanks to my husband.