Kaytee Hay is not very fresh in appearance and in smell. It's quite dry, flakes a lot and the coloring is abnormally bright green/seems unreal/fake looking.
When I first got my chin, I fed her Kaytee Hay since I did not know any better. After buying better quality hay online, Sesame will, hands/paws down, always choose the APD or the Kleenmama Hay over the Kaytee Hay. If you use the search function up above, there's been quite a few threads about hay, the different companies of hay and why members like certain types over another.