I love that this hole punch is adjustable and it has a ruler on the front and guides on the back to help adjust the punches to exactly the right positions for different punching jobs. I used it to punch holes in half-sheets (5.5x8.5") to put in a 3-ring mini binder. It punched cleanly and worked on multiple sheets though I haven't tried it on as many as 15 at once.
We had this hole puncher before and it lasted 3 years! We are a somewhat paper driven office and we hole punch regularly. The middle puncher eventually went out on us but the cost was good enough to replace it with the same item. If you don't hole punch often or small quantities this would last you years!
I bought a less expensive one at Walmart but didn't like it. The hole punch I purchased at Staples cost a little more but is better quality. I am satisfied!
Nice 3 hole punch though the center hole doesn't always punch through. Could be operator error on my part or perhaps a minor adjustment is needed. Overall it performs its function. However it is rated to do up to 15 sheets at a time but in reality it only will take about 13 at a time. It served my purpose so I can't complain.