I purchased four binders to replace smaller ones. I found the slanted rings would hold more than the round ones and the rings closed with the newer pins and sockets making alignment better without stopping pages from being caught.
Got 2 kids took one each and found it excellent. Quite strong and handled well. Would buy again but hopefully when it gets cheaper. I was lucky to get a nice rebate on this. Worth every penny lol as thats all it cost.
These binders take a beating from my high school student. He uses the 1-1/2" binder for two subjects. Although he has a locker more often than not he is lugging all of class materials to and from school every day. The folder has stayed together but it definitely is worn. The corners are smashed and the inside pockets are ripping. However the 3-rings are still intact and they are still functional. He wants new folders for the new semester. Probably for a fresh-start kind of thing. But he could definitely continue to use these folders for the rest of the school year. I would buy them again.