My only complain with the Batuu pack is that there are not enough places for sims to fulfill their biological needs. It will probably be easier to fulfill them now that there is the natural living skill from Enchanted by Nature EP, otherwise you need to edit the three playable lots, the cantina, the rebel hideout and the empire headquarters. if you don't do that you will need to run back and forth to the rabbit hole hotel. CAS looks vaguely medievalish and the BB catalogue has plenty of sci-fi and grungy items that can be used in regular gameplay. In my opinion it has the most awesome light fixtures. The pack is great if you get tired of gardening and you can treat it as a theme park and even bring back souvenirs.
My First Pet - I like the objects that came with this pack and use them often, but my sims never had a hamster. I am not a hamster person. I once had two real life ones that kept fighting with each other and escaping their tank and I ended up selling them back to a hamster dealer.
