I have tried most snuff grinders and this is definitely the best one to date. It has almost become a hobby to search for the best snuff grinder. I have had handles crack off and screens get torn up after a couple uses (I bought sheets of screens and cut them-I either use the 60 or 80 mesh size). The Coco Grinder was my favorite before this one (B+). I am not impressed with all the various aluminum ones with a handle (C). They are okay but a little tough to use. The original Deerings are great but since they are plastic, they break easily (B-).
It appears that this grinder will hold up well but I am a wee bit concerned about the strip of metal at the top (where you turn). I think there is an outside chance that this part could break.
Overall, I give this grinder an A-.