Generally, I would agree with uk1 that more information is a good thing. However, I'm with emma69 in that I've lived my life trusting that, if a restaurant is permitted to remain open, then I should be ok. Touch wood, and hoping not to tempt fate (I'm not eating at a restaurant for the next week....), I have not had food poisoning yet, except on United Airlines.

As I see it, the problem with bureaucratic systems is that they are very much a "one size fits all" approach and they look at lots of things which are not strictly necessary. Assuming that they will (and they should) close down a restaurant that was dangerous, then one must assume that you are safe in a restaurant with a score of 1 as much as with a score of 5.