I bought the one-piece less expensive rotors for CX where heat dissipation is less of an issue. If you're looking for rotors for mtb or gravel you might want to get a two-piece aluminum center rotor. But these work great and arrived true. Easy to install, make sure you follow the tightening pattern. Came with bolts pretreated with loctite
Positives Quiet, true out of the box. Bolts come pre-prepared with Loctite.
Negatives Only negative I can think of is that they tend to make a fair amount of squealing in the rain, but only until the water gets squeezed off by the pads.