The inside frame on one of the panels was cracked upon delivery.   Fixable, but disappointing. 
Overall quality was also disappointing. Upper track is somewhat flimsy and is noisy when opening and closing door. The track on the old door (this is a replacement) was much better quality.  
It’s a pretty easy install, although the instructions are confusing and poorly written.  
Some size screws were missing, while others were oversupplied.  Had to use some of my own to complete installation.