> Roomba’s are very good at what they do. I'm not sure you've ever owned a Roomba. In theory they work great. In practice, there's always something on the floo

> Roomba’s are very good at what they do. I'm not sure you've ever owned a Roomba. In theory they work great. In practice, there's always something on the floor they get tangled in, there's that one couch they're just small enough to fit under but not escape from, or there's that one corner of death in your room they inevitably get into and become trapped. And sometimes, even when everything is absolutely perfect, one of the sensors decides it's stuck an so the thing just backs up in circles indefinitely in an otherwise-ideal empty room. I've owned two Roombas and both were somehow more work than just sweeping or vacuuming.