Funny they asked me for a review now - I just used it after sitting for a month or more. I never write these, but I was impressed - money well spent.
I had an 8" Stainless Steel liner installed. I do not want any part of being on the roof. I took the elbow off my stove and ran the cleaner up while standing on the floor. It went in the T easily, and up the pipe. The ball and socket connections where easy to deal with (but a push/click system would be quicker), and I was able to do a couple sections at each change. It took me a minute to realize that the sharp edge of the T was scraping the rods, but a small piece of ducktape on the pipe edge protected the rods fine.