The pajamas seem to have pretty nice styling, they seem comfortable enough, they seem to keep me pretty warm and I think I remember that they are supposed to be mostly cotton.  Cotton is healthier.  I'll see how they hold up after many washings and then I might upgrade them from 4 stars to 5 stars.  After the first washing or two, the color seems to be holding fast and the material doesn't show any signs of deterioration yet that I'm aware of.  Based on what I've seen so far, I would recommend them.