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Solid, heavy, and polished. Adequately distributes grinds. - The "depth" is adjustable, though the minimum at which the range bottoms out is still too deep within the basket. - There's a 1mm gap between my 54mm basket through which grinds will spew out. - One to two tenths of a gram of grinds stick to the tool after each use, reducing dose.
As the other reviewer said, the flat area is quite large and especially around the center. If you just drop it down before you turn it, the flat area will compress the coffee first. So for me, I am turning and lowering the distribution tools, and I don't know if that helps. I still see channeling and spraying with the shots. I set it at 3-5mm or just deep enough for leveling and use the tamper in the final step. So bad that I threw away the box. Otherwise it would go back, very unlikely due to covid-19 and it's not worth the trouble. BTW, I have a 54mm Breville bottomless portafilter so I can see the channeling and spraying.