My P-22 is approaching 40 years old & is the absolute BEST plier type stapler I have ever used or owned, heavy duty industrial or otherwise. The only drawback has always been -- & still is -- difficulty in finding its proprietary staples. However, this has been all but alleviated with the web!! No more hunting, just a web search turns up this & various locations to get them. They were always available from the company, but until the Internet I had problems locating them (My P-22 is stamped "Brookyln, NY" and they are not there anymore --just Saddle Brook, NJ). Being on my last box of 5000, I've only used it sparingly for the tough jobs, while daily needs were met with inferior products, using readily obtainable standard --ie, easily replaced -- staples. Now that I can easily find the staples, I can return to using exclusively my P-22, the absolute BEST!!