Toddlers and Vampires were really the only things that made it good for me. I am not a fan of supernaturals in the Sims but vampires were really well done. I love the whole powers\weakness thing and how they can freely drink without asking permission. I have mixed feelings on parenthood but it did add more depth to raising children in the game which I like, but I wouldn't call it amazing.
Cats and Dogs was terrible in my opinion. I hate that I have to open a business for vet. I wanted an open career that I did not have to own like doctor. My dog pooped on the back porch and I am not sure if that is normal. I cannot see their needs so I can map out a time to walk them that is more convenient for my Sim. There are so many more things I want to complain about but what is done is done. I know some people love it but out of all the pets expansions, I feel like it was the worse. None of my Sims will have pets again after the Delgato's pets die. They almost feel more needy than a toddler.