Functional bikes. Not Porn not Anti

They do exactly what they should. Nice positive clicks too.

Microshift make similar ones, much pricier but adjustable resistance.

I have one on my beater, been flawless

Nice thing about the SunRace models is, that you can adjust the cable exit angle.
And with a little filing you can mount shimano downtube/bar-end shifters on the mounts.

I didn't get on with the 9-speed lever that I had, so I just use the mounts with different shifters, but reading up on it, I probably had too much tension on the top screw.

Would buy again if I needed more..

I can't remember definitely if it's the same model, but I had a problem with one 9sp sunrace thumbie. I think mine may not have had a rubber lever. The one I had worked fine with a shimano der, but couldn't get it to index well on a sunrace der. Very weird.

I don't like sunrace shifters because they have very hard clicks, but that's a personal preference.

They're good. Also possible to make them friction instead of indexed if desired. It takes a bit of careful dismantling and fiddling, and not losing key parts, but is possible and the result works fine.