Better than expected.  Very impressed how well it was packaged.  Every panel was protected by either styrofoam, padding or both.  There was no dents, scratches on any of the panels, totally pristine. 
Using both the video and the manual I took my time, very easily done by one person.  Tip toss the included screwdriver, use a drill with an extended Phillips bit to make assembly go much faster.  About 90 mins from start to finished, no issues, resulted in a solid fully functional file cabinet.