is good, but does not mean always that this guy is ok. First impression also does not mean that this guy is bad. Some people say, I don't need to eat the whole egg to know that it is corrupted. It can be true but also .. if you try something at a place and did not like it, try it into another place and you will like it. What I meant is .. it is up to your good or bad judgment of the people that you met. It might work fine and you consider a really good person as good. It might also fail you and consider a good person as bad or a bad person as a good one.