Anyone doing “ready set food” ?

I talked to my daughters allergist about doing spoonfulone with my son to prevent the multitude of allergies my daughter has. He told me to look into “ready, set, food” instead. Just curious what others experience! My son hasn’t had any exposure to wheat, soy, or peanuts through me so I’m very nervous about having another child with allergies 😫

***please talk to me about YOUR experiences with it as in, you used it, if you didn’t and don’t like the concept/price/whatever...that’s fine, I want experiences from people who used it, especially if you had a child with a high allergy risk