Minolta Flashmeter III, junk or good for general use?

I am looking at a used Minolta Flashmeter III. Are these any good? The person does not have any specs on it being that it is an estate find. I do mostly natural light & some flash photography. would this meter suit my needs?

Someone else posted earlier about it, might be of some help:
https://photography-on-the.net/forum/showthre​ad.php?t=243968

Minolta Flashmeters were, over ten years ago, the flashmeter to use, but which few amateurs would splurge in buying! Professionals used them widely, and they are every bit as useful now as they were 10+ years ago. The newer meters simply have more modern frills, none of which are indispensible (merely very useful to have!). Minolta Autometers were the amatuer's meter of choice, and widely used by professionals as well.

The most recent version of Minolta meter designs were purchased and now manufactured under the Kenko name brand.