Camera of pre-70's era, built accordingly. Size is small, in fact, smaller than KAS2 but I think it's heavier. RF mirror can't unglue like in cheaper made FL RF's (KAS2 is notorious for this) because it's mounted in frame not glued on.
There are at least two shutters used - earlier mod allows to set spped and aperture independently, latter mods have speed and aperture coupled (though some control-savvy users de-couple them, don't know how easy or difficult it is).
This type of shutter (I mean, Seikosha variations, different from leaf Copals) requires shutter be uncharged to be able to set/unset sppeds 1/500 and....which one from slow speeds it were? Have to look in manual.
Focusing is little different from cameras with knurled focus ring - III has focusing tab on bottom of lens and no knurled ring. No problem at all, but one has to get used with this.
Shutter release is very good (much better than on KAS2) because there is no AE employed though Yashica Lynxes (both models) STILL BEAT KIII !!!
Resume - it depends on price - if you drop $200 for III and $5 for Lynx 5000 then there's space for doubt if tactile feeling of solid engineering and superb Hexanon are worth 40 times over Lynx which is proper name for this sleeper Yashica.