REPLACED MY 30-YEAR-OLD SHARP WITH THIS ONE. THE DISPLAY ON MY OLD ONE WAS GETTING TOO DIM TO SEE. I DON'T USE A CALCULATOR THAT OFTEN ANYMORE SO BUYING A USED ONE WAS A PERFECT SOLUTION FOR ME. THE DISPLAY IS BIG AND BRIGHT! THIS CALCULATOR IS GREAT WITH THE ONE EXCEPTION THAT THE +/= KEY IS A BIT "CLACKY" AND WIGGLY. IF I NEEDED TO RUN NUMBERS ALL DAY LONG, THIS MIGHT BE A NUISANCE; BUT OTHER THAN THAT, IT WORKS AS EXPECTED.