

If you’re using a roomba, the app will typically tell you when to replace your brushes and filter. The filter you can find easy replacements for as well as the little spinning brush. The bigger brushes are harder. You can buy replacements from third party vendors for cheap, but they’re not perfect… and if you have carpeting the roomba will freak out until the third party brushes wear down a bit. After that happens, everything mostly works.
I usually clean out the roomba every week and replace the brushes every 4 months or so. I run mine nightly though (I have kids).
He’s one of the first hard tests. You just gotta keep throwing yourself at him until it clicks. I went the other way and did Lady Butterfly which had its own pain. You have to play aggressively. Hesitation is defeat and all of that