Disclaimer - I own several Craighill products and love the majority of them (including the all puzzles, 3 types of trays, and several of the "desk" products). This review is for the desk knife in brass only (for which I've also purchased the plinth also).
I have owned this knife for close to 3 years now, and got my utility out of it as a decorative piece, but also strictly opening up letters a plethora of amazon boxes that arrive every single day. Given the price standpoint, I would have expected this knife to last me a lifetime. However, this was not the case, when I opened up my latest package, while applying excessive force at an awkward angle. The picture sums it all up - while the edge is not necessarily too sharp, the tip has bent completely after opening up a package that was sealed with fiberglass tape. Obviously YMMV here with your usage, but I was disappointed to have this happen, especially since all of the other products I've owned were high quality and reliable until this day.