From first use (delivered 20th August 2021) the light green rubber brush started to fall apart compared to the originals which took about a year. I collected pieces of rubber without realizing they were from Roomba. It's just not worth saving a few bucks by buying cheaper alternatives because it now costs me more and adds the cost of getting the original from iRobot to the money already wasted on those alternatives. Now I have serious doubts if the rest of the kit is what they claim, if the filters are even high performance filters. I love my iRobot Roomba and Braava Jet and will stick with the originals from now on.