"To anyone who is thinking about buying this set. I say to them. BUY IT!!!!! I love the details put into this set. And the functionality is great. Everything works so smoothly from the app and everything. ALSO!!! To anyone who is having trouble with the step two smart hub testing process. When you do that. You have to have all of the motors connected to the hub in order for it to connect to the app. And after you are done testing. You can take out the extra motors you just put in. And continue building. I hope that this solved the confusion, because I really don’t like seeing bad reviews on a LEGO set."