When a sequel can’t even be bothered to come up with a cleverer title than “2” you have a sense of the effort they put in. The movie isn’t awful, it just isn’t anything new compared to the first one. In fact, in many ways, it is less interesting than the first because the whole sense of reality of that “secret life” wasn’t a part of this movie. It was all crazy impossibility, often right in front of the humans.
I will admit that there are just enough clever moments (and one brilliant one) to keep it all going, but the truth is that this just isn’t a required story. Young kids who loved the first would probably be thrilled there was more to see, but not much more than that. Even the addition of Harrison Ford (Blade Runner 2049) only barely elevated a section of the tale.
For a throw-away, popcorn evening that you will likely soon forget, it will work fine. If you want something new and memorable, look elsewhere.