Worked well, removed so much junk from the chimney, the only thing I wasn’t thrilled with was the connections, they came loose a few times but thankfully the brush just slid down to the bottom. I recommend following another reviewer’s advice & use duct tape to keep the rods secure. I also recommend putting down a drop cloth & somehow tenting the area surrounding the opening you’re working through to contain the mess. Wear a mask & googles & use an air purifier