Robot vacuums are brilliant. It's worth pointing out that a big vacuum cleaner does a better job at collecting dust than a robot vacuum. One run with a high-pow

Robot vacuums are brilliant. It's worth pointing out that a big vacuum cleaner does a better job at collecting dust than a robot vacuum. One run with a high-powered wired vacuum probably collects as much as 10 runs with a robot one; you see a little dust collected every day because it's not collecting everything on every run. However, the benefit of a robot is that it runs every day. So it's less efficient in the short run, but in the long run it gets the job done. Streaming vs batch. :-)