This hole puncher does not punch 15 sheets; 5-7 pages max. Center hole often does not punch all the way through and the only way to get the pages out of the puncher is to tear them out. It is helpful that the standard 3 hole positions are clearly marked on the back.
We purchased this hole punch to replace a standard smaller punch that had finally fallen apart. This punch was slightly more expensive than the previous one but the price increase was minimal since we are often hard on out office supplies. The quality we have received from other Staples products have =been very good so I am expecting the 3-hole punch to withstand our office for a good long while. The office is very happy with the quality and capability of this three hole punch. It has not jammed yet!