What is excellent about it?
The Treaty was a continuation of the centralising trend away form the nation state. Personally I think that is undemocratic particularly when you consider that the EU's Executive is the European Commission, whose members are unelected and can't be removed.
But whether you think it is good or bad is not really the issue, you didn't answer the question. Was it right that the results of the French and Dutch referendums were ignored?