Me too. I am not of the belief that, as individuals, they are beyond reproach; they are only human. But, as an institution, I think that constitutional monarchy is the most sensible, and most civilised method of selecting a ceremonial head of state.
Objectively, I believe the Queen has done a magnificent job during her reign, acting as a figurehead for the country, developing and modernising the role during quickly changing times while retaining the traditions, and acting as one of the key elements in British diplomacy. A lot of the things she has been asked to do forced her, as a naturally reserved and shy person, out of her comfort zone but she always appears to have acted with dignity and to have been very personable. Despite what some people would say, the role is a demanding one in many ways and to still be doing it after 70 years is amazing. I hope her reign continues for as long as possible.