These are by far my favorite notebooks. The rubbery edges mean they don't slip all over the place and are easy to grasp. The D-rings don't mangle the paper. They also are so sturdy that we have never had one become "unusable" after many years of use.
My latest purchase at binders I am very happy with good quality and good price. I also like the fact that I can order online and it's ready when I get there! Staples is my favorite store.