I staffed my Science lab with servos and made a shared house for them in one of my previous saves. I wanted to take the Lab into the future with a robotics station and lots of drones and droids. My biggest problem was that once I'd moved on to another household and I wasn't controlling the servos, I kept finding them broken down at various locations but I couldn't fix them even with max skills. You get the option to call the repair person out but they don't attend the droid, they go to your current lot instead. So I end up sadly standing with my injured, sparky droid vainly looking around for help like, "stay with me old buddy, stay with me it's going to be okay...nooooooo". It's best not to love them 😢.