They surely do cut great and if that is primarily what you are after than you are going to be happy with them. For me, a pocket knife needs to have more though. Above anything else, a pocket knife is supposed to be convenient. It should cut well but it will never cut as well as a super thin kitchen knife. It should be sturdy but it will never be as sturdy as a thick fixed blade. It should be handy but it will never be as handy as a purpose build pairing knife. There are compromises.
In that vein, the opinel folding knives do cut well. But they are not convenient in my eyes. If I am holding something that needs to be cut, I cannot retrieve and open my opinel with the other hand due to the nature of the nail nick. Then after getting the knife out, i need the other hand again to operate the collar lock that it features. Opinels are great first knives to teach knife safety and they cut like a demon but in terms of the convenience that i look for out of a pocket knife they dont scratch that itch.
