I have tried this tool and it works. Similar to other tools with 5 needles, this one has 7 needles. Just like the 5 needle tools, the 7 needle tool isn't optimal using all the available needle space. What this tool can do, that the 5 needle ones can't is give the perfect needle pattern for felting quickly and easily.
I have found that using only 3 needles in a triangular pattern is the best way to use this tool. As this tool also comes with extra needles, using only three needles at a time gives you more needles, needing to buy fewer needles.