I had a very popular name brand grinder for years. This one, by Cannabis Hardware, is miles beyond in quality. The thicker walls make it feel much more durable and the larger diameter makes it much easier to twist. You can also add silicon arm bands to this one to make the grip even better.
Mine is different than the one pictured, however. Which, aside from the sweet engraving, was it's main selling point for me. The beveled edge on the male part(the bottom half in picture three of their website) is not there on mine. I really wanted this feature. The one I got has a straight wall. The center post on the one I received is circular and not a star pattern, though I'm not sure that's a problem at all, just a difference I noticed.
The grind itself it effortless and the material comes out very fine. It's efficient and I like it a LOT.
Despite the differences in the one I received and the one pictured, I would HIGHLY recommend this grinder. To be fair, the two things I pointed out may not actually be a bad thing at all. I'm happy with my purchase.