Definitely high quality fabric and fabrication. Solid, double-stitching throughout. Slightly over-sized design, but overall true to size. Very soft and has a great fleece texture on the interior. I got the Large and I'm 6'2" 180lbs.
I got the white because I like to dye things. I used 71 grams of Dharma's Deep Space blue and followed their tub dye process. It worked really well. The hoodie took all of the pigment and looks really great. Definitely a great option for those who are looking for wild color options and don't mind getting your hands dirty (or turning one blue because your daughter put a hole in one of your gloves).
I have the sweatpants in white as well, and will see if I can decide on a color for those now.