My first go at PolyPan F seems to confirm all of Haempe's statements. I pushed it one stop and developed it in Caffenol-C-M (for other films I've tried it has a moderate compensating and speed enhancing effect).
Haempe's own vs my limited experience:
High Contrast: It turned out very contrasty indeed. Not having done more tests I can't conclude the film doesn't push well, but given other people's experiences it might well be the case. Next go will be exposed at box speed and less agitation when developing.
Glow/Halos: Oh, yes. Lots of it. Anti halation layer either not there or very thin.
Grain: Pushed one stop no better than ASA 100 films, in fact maybe worse. But I've seen EI 25 and 50 exposed instances which are very fine grained indeed, in Caffenol and other developers.
Shadow detal: Not much of it, but the blacks are indeed very rich, dark chocolate rich.
Examples:
High contrast (even if this scene was meticulously metered, placing the bricks to the left in zone 3)
Dereliction: Fornebu by
Eirik0304, on Flickr
Halo effect?
Uni by
Eirik0304, on Flickr
Fat blacks?
Highway #1 by
Eirik0304, on Flickr
Not very fine grained?
Summer has yet to come #2 by
Eirik0304, on Flickr
I feel inclined to try out more of this film. I probably have not given it due justice in this first attempt.