I have a set of Magnalite that is 30 years old and has been used on a weekly basis-- it is still in beautiful shape and everything cooks great!! My mother is still using her "wedding" Magnalite-- she cooked in these pots for a family of 9!!! Her set is 55 years old and still going strong!! And, as she told me, don't put it in the dishwasher because they'll turn black-- she was right! My sister's 30 year old set is black and mine still shines since I wash them by hand and she doesn't. "Mama's always right!"
I have not yet had the opportuinity to use the stock pot, but it appears to be well made. It has good fit and finish. It is not as heavy as one might think. In addition to making stock, I think it will be handy for soups, stews and gumbos when making that volume.