Emerson F&F seems to be improving, but the knives could be described as "rough".
Of the knives I've bought recently, out of 6 knives, 3 had problems and 3 were perfect. Emerson took care of every problem I've asked them to, even paid for shipping back to the factory for one knife, and the turnaround was about a week which is incredible.
I'm not slamming Emerson, as I believe my 50% success rate was just bad luck, but I couldn't confidently tell someone that Emerson knives have excellent fit and finish. I'd say that EKI designs are incredible, and they have adequate fit and finish for a user knife.
If you are picky about your liners fitting the G10 perfectly, machining marks on the blade (my stonewashed blades have such rough machining that it makes a zzzzzzzzzip sound when I run my fingernail down the blade), etc. then do NOT buy an Emerson production folder. However, if you want a tough, efficient cutting tool then Emerson is the knife company to go with.
I'm super picky, but right now I'm wearing an A-100 BT that has machine marks on the blade and liners, a backspacer that is a little bit crooked, and G10 scales that do not fit the steel frame underneath... But it was designed by a master knifemaker to feel incredible in any grip, lock open safely, and cut like crazy. Out of all of my folders, it's by far my favorite knife in spite of the unimportant lack of perfect fit and finish.