[Closed] Superstar BrakeDiscs?

Good enough yes. I use them. Find them much better value than the official replacements and those form the likes of fibrax etc.

I also use discobrake depending on which is cheaper

Don't they'll do the dirty with your sister

Aztec rotors from SJS Cycles are really good

I don't have the Superstars but at least one of their models is the exact same as the Tektro ones that I used on the old bike. They were round and metal, nothing to report really, they just worked.

I didn't like the wavy rotor I had (made fork flutter) but that's a combination of a light fork and the wavy design, not the workmanship which seemed fine.