I bought this to hold a cook book from 1955 that came apart on me. I also bought a few of these for organizing files at the office they stand up well to constant use.
The binder is big but easy to handle due to the flexible spine and edges. I like the label area on the spine; so much easier to slip in label from the inside. Also the see-thru cover area is confined to hold a letter-size sheet of paper rather than extend over the entire size of the cover. Very nice. Didn't have to print on oversized sheet of paper and then cut to fit the larger area.
This binder is everything I expected - all the special features are exactly as advertised. I was surprised however with the spine label. It is an opening only about 4 inches long. I have been using full length spine labels and this design feature will force me to change. Not a biggie but a surprise.