I had great experiences with them twice, but alas, I forgot their names. I am sure whoever you get will be wonderful. My husband is scared this year to let someone watch our almost 3 year old for part of a day because he says, "You never know who will be watching our baby." I am disappointed because I loved KNO last year when she was almost 2. I don't know why all of a sudden he changed his mind, but oh well, whatever is best for our kids.
I hope you enjoy your anniversary and just trust that you will get a kid-loving sitter!