I get on ok with a genuine Knog Oi Deluxe, just about loud enough, very discrete. I broke one with my knee in an innocuous low-speed tumble, that hurt, but once I’d found the bits in the mud it all went back together fine.
We have a genuine Spur Cycle bell in the house and one of the fakes. There’s no comparison, the real thing is so much better made, sounds louder with longer resonance and is just a quality thing. The fake very much is not, corrodes, looks and feels cheap after a few months, doesn’t do the important bit of making a loud ding quite as well.
I use Timber Bells on mountain / gravel bikes though, just a really nice way of attracting attention without creating dissension, or something like that.