I hate them for various reasons:
I think the LED lights look cold and don't spread the warmth of the arches.
The princess theme goes back to 2004ish when some genius had the brillant idea to put the christmas tree in front of the castle and let the princesses conduct the Tree-Lightning-Ceremony. Now there is no more reason for the princess theme, besides, they look tacky.
And there is no way that LED Chandeliers with pictures of Disney's princesses fit a Victorian Street. I know that this doesn't matter anymore but it should.