I personally watched this after completing the 1997 series and highly recommend doing this. Even if it's the pilot, it takes place well after the first case in the series so it was sort of a perfect finale.
Kindaichi is written/characterized/treated differently here from the rest of the series. We always see him as part of slapstick and pervy humor while he's off playing hero but the former two are really toned down. Not to say there's nothing of the…