They do a great job on my Braava 240. I'm still trying to figure out when and when to use wet pads, but I can confirm that wet pads pick up a surprising amount of dirt. I hand swept and mopped the floors 4 days ago and used a dry Braava pad every day, a wet pad on day 2 and a wet pad on day 4. Both wet and damp pads were black when finished. . And my floors seem clean enough to walk barefoot on.