I love better binders!!! I have both the 3 & 4 inch binders and they have lasted over a year. I bought this 1 inch for my son for this upcoming school year. I am betting it will hold up better than those cardboard covered notebooks.
The binder is sturdy and functional. I bought the 1” and it holds the amount of paperwork as expected. I have always liked the D ring better than the C ring as it allows the paper to lay properly and it’s easier to load paper index card dividers etc. Good product.