I ran the Nurture Right 360 as the instructions stated during January 2023, and 21/24 hatched successfully. One had to be culled, but 20 chicks from 24 eggs is pretty good I think. I've heard a number of folks have that kind of result from non-shipped eggs with the NR 360.
I drenched my eggs in hydrogen peroxide and scrubbed off the poop prior to setting (dirty eggs were mostly what I had), and then had to be really careful to sanitize the incubator and wash my hands prior to turning. Most folks just set clean/cleanish eggs (no washing) and have no trouble.
I overloaded my incubator and had to hand turn 2 of them the whole time, and had a staggered hatch and put together a still air incubator from stuff I had at the house, it was a pain, don't do a staggered hatch, use the auto-turner for the NurtureRight and don't overload it.