Many years ago I went to the States to see a mate who had moved over there. Bored one night we decided to get a video out(yes it was a long time ago) I decribed this film, he'd not heard of it, so he said he had seen 'The Blood of Hero's' and it was great! Of course it was the same film - with a different title in the States. We both enjoyed watching it again.
If you like action to be tough,and realistic within post apocolyptic setting, then - despite it's low budget, this is a gem in the Mad Max vein.
Yes they could have done more. The story is thin - at least the hero gets stuck in, and gets a kicking from time to time. They did not waste millions on it - like 'Waterworld' & the 'Postman'. Compared with the realism of many of todays films it was years ahead of its time. The dialog is understated, but that is not Hauer's style.
If you are a 'rugby playing type' you will enjoy the fight scenes enough to not worry about its rough edges - its not quite a 'sports' film. It's not quite Mad Max, but works in a similar way - with a lot of subtle messages about how things might be!
Give it a try!!!