Interesting a feature packed programmable calculator.
If you are into programmable calculators this is a pretty good one. It is essentially a reworked TI-58C made by Toshiba for Texas Instruments. It has really good battery life (the older calculators all had rechargeable batteries that only lasted for a few hours per charge) meaning, well years. The calculator seems well made and even has double shot keycaps. You can use this with a PC-200 thermal printer to produce alphanumeric output. I'm sure that if you need a calculator you can probably find a good use for this, but simply as a fun tech geek item to play with, this is a good purchase.
It's a nice compact scientific calculator for my desk top. I've used it for rudimentary calcs. So far so good. Haven't tried programming it yet but I don't anticipate any issues based on the condition it's in.