The first wash with this thing and I can already tell the difference—my mitt stayed completely clean even after scrubbing the wheel wells, thanks to those cyclonic funnels doing their job under the filter. The dirt that did collect settled right at the bottom instead of swirling back up into my soap
Honestly, I was a little skeptical about the whole cyclone thing, but after a few washes I can see the dirty water is actually being pulled down and away from the mitt. It's a simple idea that just works, and my wash water stays noticeably cleaner for the whole session.