Summary: I purchased this Casio because of product reliability from Casio, value price and sized to fit into a pocket or carry-on luggage. It has proven to be reliable and easy to carry around. The size is perfect. The buttons are plenty large even for my big fingers.
Summary: I purchased two. Two were shipped. One worked for a day and then 'died'?? Dual power - Solar / and battery' Not sure what's up with that? The other appears to be working and what I'd hoped for. I need to see how I can return the new one that does not work.
Summary: As a veterinary technician, I wanted a very small & light calculator that would fit easily in my pocket. This calculator is both. I have just two minor gripes: 1) the buttons don't offer great tactile feedback; they feel smushy when I expect a click.