This was a really nice calculator while it still worked. I especially liked that the solar cell power worked even in really dim light. But, like one of the other reviewers, I started having problems with the LCD display, some of the segments wouldn't show up anymore, ie. if I entered 88888888 it might show up as 813E831E. I didn't treat it roughly, it was only used at my desk. Well, it did last for over 2 years, so maybe I shouldn't complain so much, but in comparison, I have a Casio scientific that is still working after more than 10 years.