I have finally received my custom cushion order. There isn't a single straight stitch, unpuckered corner, parallel line, or even an ounce of quality to the construction. Seams are falling apart, scratches and scrapes on the surfaces of the cushions, and the measurements for the couch back are off by over 1.5", which makes them unusable. The chair backs are similarly off-measure, and the chair bottoms look comical with the oversized backs (like mushrooms).
It would behoove Cushion Source to help correct all of these defects sooner, rather than later, as I am about to start a formal complaint through my bank for them delivering incorrect, damaged, and poor quality goods compared to costs spent (>$2400).
After such an experience, I'm not sure I can recommend Cushion Source, and will update this review with their response and exactly how they tried to remedy all of these defects.