I incubate at 30-35% RH and hatch 70-75% RH.
I don't have experience with the Genesis model and have not read any reports on it's hygrometer accuracy. General rule of thumb is trust nothing. It may behoove you to purchase a small Acurite hygrometer at Wallmart and perform a salt test on it to calibrate for humidity. Other will chime in that own this popular unit and hopefully they address the validity of this models hygrometer. Reports on it's preset temperature is very good and from what I've read you are able to make minor fine tune adjustments to that if needed. Most plug it in and start incubating, shouldn't be a need to adjust the preset temp.