I first purchased this adding machine when I was an office manager. I used it every day, and had no problems with it whatsoever. After I quit my job to work at home, I needed one for my home office. I went and bought the exact same one! I loved it so much!
The keys are never sticky. The keys bounce right back. I am very choosy when buying items like this that I have to use on a daily basis. The numbers/signs on all of the keys never fade at all. And believe me, I've used them a LOT!
The paper is very simple to feed. I've never had any problems at all. It just takes regular sized adding machine rolls.
The ink lasts a very long time. I've had mine for over a year and the ink is still just like new. When I worked at my other job I did have to change the ink ribbon before and it was very simple.
When and if this calculator ever goes I will no doubt purchase another one just like it.