People always ask and I asked the same question does it actually work though does it actually clean the floors? And yes it does. It can't get into like the smallest nook and crannies along the corners of things because it's circular but if you just let it do its thing and forget about it and come back a while later it does clean up the floors. And you can check and it's compartment you empty out and it's always full. Pretty simple to set up and if it runs into something like an edge where it will fall it stops or something that pushes it upwards it stops and you just have to move it.