I've owned 3 of these
There are so handy because they're alot smaller and lightweight than most other staple guns that don't require power. I lost my first one so I decided to buy 2 more for work. They are hard to find in retail stores.

Love this little stapler
I had used this stapler when black & decker came out with it 20 years ago. Probably the only negative is that it is made of plastic. I have dropped one to many time and broke it. So I found its replacement on amazon. The ergo design and it size makes it great to use for small light duty projects. I'm using it to put up rolled insulation in garage walls and it is easy to use. Other reveiwers claim of jamming, I discovered that if you use one row of staples, it will not jam. If you put in 2 or more broken rows of staples, it will jam. Overall it is a very friendly tool to use.