For an albino it is an honest offer.
What can you be assured of, well shed is a bit much IMO, people who breeds will not always keep shed records especially if they have 100's of babies.
What is usually standard is sex and health guarantee as well as the fact that the animal is an established feeder with a minimum of several successful consecutive meals, personally I don't let go of any of my animals unless they have at least 3 meals but more often then not it's really 5. I want to make sure that they eat well and that they have a bowel movement before I let them go.