I prefer the German FR, and the German 1984 model if I have my way. Try to stick with the official FR upgrades if you want to keep the warranty in place. Plus, the official parts are sometimes more affordable.
However, the Schaller LockMeister is easily as good, if not better, than what they make for FR. I have 2 LockMeister terms and they have been rock solid. I have a LockMeister on my N24, that replaced the FR Special it came with. And then an official FR brass claw (just $10, screws included).
I’ll never touch another Gotoh. One started to wear at the knife edges, so I replaced it with a brand new one. Which started to show similar wear within a few hours. Others have had similar experiences.