I suppose 'know your audience' applies here. Generally the higher up the food chain the less likely that people will 'get it' if it is not an extremely polishe

I suppose 'know your audience' applies here. Generally the higher up the food chain the less likely that people will 'get it' if it is not an extremely polished Proof-of-Concept (there are exceptions of course). If I am going to play amateur psychology, I would say that people who are generally more perfectionist types and are likely get caught up in details are less likely to give a healthy review on work-in-progress.