Pros: holds in moisture after several hand washes, lasts long
Cons: petroleum products are unsafe for use on or around infants
This product is great if you don't intend to use it on a baby. I have used it extensively on sheep, horses, cows, dogs (not cats! they lick it off)... and I use gloves or immediately wash it off my hands. This takes several washings because this product has serious staying power!
If this is being used as a diaper ointment, I would find another-- petroleum jelly is basically like semi-solid gasoline & not the best for baby bums! If mothers would like to use something heavy-duty for chapped hands or rough heels, this would hold in moisture & protect from further mechanical irritation. For babies, I'd find a different product.
Oh-- one tin lasts seemingly forever; if you like the product, don't be afraid to invest because it may be a year or more before you run short.