Not sure about that one but the other one (Perutzchrome) I might be able to shed some light on.
I am told it gives strong purples and reds which dance around the screen while the image remains sharp with some grain.
I have dabbled in outdated films too (mainly old Agfas- got some wonderful results over the summer) but haven't got the spare cash or time at the moment, otherwise I'd be tempted myself!