Although the materials are well made, the directions were not clear in assembly, and I have done 20 items where I did the assembly!  The roller guides were in black on the video, but they were white when installing and had a different picture.  I have spent a total of 5 hours trying many combinations. I now will reverse all the roller guides and hope this is final.  Next, if this does not work, I will ask Wayfair to send someone over to finish the job, and I won't be paying for the labor.   DAC