P.M.
Yep! I use the one that came with my husband when we married. It had been his mom's before she died. It is an honored member of the family, and my preferred pan since I learned how to use it well. In the past 30 years, we have had few meals that didn't get cooked in that pan – it's great for browning, sauteing, stir-frying, and stewing.
We also hand-wash the pan with detergent and hot water every night. It is very well seasoned, so I just rub a light coating of olive oil into it after drying.
Yes, some digestible iron leaches into the foods you cook, especially those with a touch of acidity.