This is easy to use and works good. The platic cover for the keys broke off. It was only attached with a couple of plastic pins.

These calculators are bulletproof. Excellent life out of the battery and robustly built. We even have one at work with the folding case snapped off and the numerals worn off the buttons but it still goes and we still use it. I was so impressed by the build quality, I had to get one for the home

It's simple, uncomplicated and does the job, it also seems sturdy and well made.