I have many mechanical pencils, from Pentel, Rotring, Uni, etc. This is by far the most intriguing pencil in my collection. It's like a clone of a Rotring 600 to a point. The whole thing is metal, except for the lead tube. All of the stress points are aluminum, and I'd expect this pencil to outlast the user. The lead advance mechanism is all brass with a rubber dampener (careful not to lose this!). They took the extra time to include a lead clean out tool on the eraser (most don't include this 0.7mm and up). The lead advance is smooth and the click feeling is definitive. The rotating lead hardness indicator could use more stiction to prevent it from rotating. Unless you are consistently running different grade leads in it, then it's a small flaw. The grip itself is a hardy chunk of knurled aluminum, which provides just the right amount of grip. It has a nice feeling in the hand, along with a premium weight. The balance is just right as well. Like I mentioned earlier, it appears to be very similar to the Rotring 600, but with some slight improvement to the design. I've been using it for about a week now, and no lead breakage (I usually run 2B Nano Dia or Neox in .9mm). Overall, I'm very satisfied with the pencil, and more folks should look into this particular pencil.