We have a collection of the beloved little guys
At home we have one on each floor and the same at the cottage. About the only negative thing is that if they get stuck under something and the battery runs out before they find their way out we have to go on a search mission---but that is not a daily problem. The most noise comes from the tile floors, which we have a lot of---they "bump" at every grout joint. Like you, we were amazed at what they pick-up.
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis