The paper could not go in the slot to punch the holes. When I did get the paper in the hole punch it didn't completely make the holes in the paper and I couldn't get the paper out of the hole punch once it punched holes!! Not good quality.
Cheap design no means of registering sheets to a reference. Sometimes doesn't punch cleanly even on single sheets. I returned one but the second has a different problem... like always cheap is not the same as GOOD...
Hole punch works well up to about 9 pages; too hard to push for the 15 that is advertised. Also if paper longer than 11" standard it is tough to punch evenly as the holes won't be centered on the paper as one side of the punch has a shield to keep 8.5 by 11" straight.