The build quality of this knife is immediately apparent when holding it. Every piece of this knife looks meticulously crafted: edges where there should be, curves where there should be. Someone spent a very long time handling this karambit design before producing it - it's feels just right. The retention ring is perfectly sized and silky smooth to the touch, as if this one piece was bead-blasted to provide a surface with reduced friction for easy insertion. The blade is razor sharp from the factory, and the curve of the blade is the perfect shape IMHO. The blade shape was honestly the greatest factor in my decision to purchase the FOX 479 vs. the Spyderco Karahawk or Emerson Super Black.
The blade deployment with the Emerson Wave takes a little practice, but produces reliable results once you are accustomed to it. The opening action seems deliberately stiff. This may ease up a little after a number of deployments, but it should be mentioned. Using the flipper to deploy the blade requires a solid wrist flick. There is no obvious side-to-side blade play when deployed and the liner lock is solid, not allowing for any vertical blade movement, regardless of how gently the blade is deployed.
As others have mentioned, the grip is large and people with smaller hands may have trouble placing their fingers into the finger grooves, however this is not a show stopper. It still feels very comfortable and solidly anchored when you choke up on the grip a little. I have heard the over-sized finger groove design is due to the fact that the military forces, for which this particular FOX model was designed, requested that it be compatible with their standard issue gloves. This allows for reliable use in any environment, climate, season, etc.