I'm prejudiced in favour of GIMS because a lot of it was filmed in Devon c1950, just before I moved to the county, and I'm prone to nostalgia. I liked the scenes shot in Ashburton and the agricultural fair - very evocative of simpler - perhaps happier - times.
Putting aside the Devon content, the film is a reasonable post-war low-budget film. Before seeing it, I hadn't been aware of Peter Reynolds, who came over as a type like David McCallum in his young tearabout roles. Elizabeth Sellars reminded me a little of Joan Collins, but nicer. And in a pub scene one can glimpse "Q" himself - Desmond Llewelyn. Apart from the token Devonshire accent, everyone seemed to speak every so nicely.
Film industry conventions of the time demanded that people should pay for their crimes, whatever the provocation, and there were no great surprises at the end.
The only jarring note was the scene in the foggy churchyard.
GIMS was one of the best things I saw on TV over the Christmas-New Year period - which may not say much for everything else!
Incidentally, there's a brief scene of a small train arriving at "Welford Station" - perhaps the branch line terminus at Ashburton. There was actually a Welford Park station on the Lambourn Valley Railway, north west of Newbury, that served the hamlet of Welford.
