Till now I used binders and plastic sleeves to classify and store my documents, which ended up taking up much space. So last month, I use this tool to connect it all.
It is indeed a tool provided for a moderate use, since it does not use more than 12 sheets at a time when using the punch function under penalty of blocking the machine.
I have used several types of paper, stiffness and different thicknesses without any problems.
The binding function is of the same level. I used several ring sizes without problem (I created binders of more than 150 pages).