Dan M.
Purchased a custom-sized shade sail for our pergola. I was able to call and ask questions before purchase to make sure it was what I needed. Product arrived quicker than expected, quality appears good, no parts were missing or damaged. It's only been up for a couple of weeks at this point so I can't comment on durability season-after-season.
Note that if you're attaching to your own custom pergola rather than a TOJA GRID pergola, then you may need to fasten some additional blocks for mounting some of the brackets.