They are great! The seat cushion is thick and firm.  It is hard to find seat cushions that have a good foam and is not going to flatten in a matter of hours or days.  The pillow is nice and thick as well.  They are perfect for deep chairs.  I wish they had either ties on the corners or sewn on loops,  this way you can tie them to the chair or use plastic ties to hook them to the chair.  Living in Colorado we tend to get high winds during summer and fall, and sometimes they are upwards of 50mph. Neighbors are always looking or finding lost cushions.  
I haven't had them long,  so hoping with the sun we get the material will not lose it's color.