anyone have a reptipro 5000?

i just bought a reptipro 5000 from one of my neighbors wanting to get out of the chicken business and start go cart racing...lol

she had different age chicks already hatched and had one hatch while we was there, she had all kind of dates on eggs that should
have hatched around dec 14th to dec 25th that should have hatched already.

it does not have the egg turners just by hand.

my question is does this incubator have a good hatch rate or should i be lucky to get a 50/50 hatch rate. i know there is all kind of things that
can be wrong with the egg and her errors.

anyone give me info if that have the reptipro 5000 and there luck with it?

thanks