Navid, Teflon is good for a few things like eggs, french toast etc. Teflon starts to peel over time and gets in your diet something to be avoided. Stainless steel pots and pans are the best because they don't peel, you can carmalize and saute in them, fry and brown foods to taste, they hold up forever unlike teflon which again even if your careful start to peel over time because you put other pans on them in your shelves, use inappropriate cleaning and cooking tools simply because you don't have the time or patience to be all prissy when using them. Buy, a steel pan, pot and unless your really careless you should have it for 50 years, the same cannot be said about teflon pots and pans which need replacing within just a few years unless your happy looking at scratched to hell peeling pans. Anyone that cooks regularly will tell you that stainless steel is the best for cooking, your health and economically.
Again it is a great deal for the price though. Just flapping my gums and wishing they were not teflon coated.
Don't believe me just search for teflon in your diet and teflon versus stainless steel cooking pans etc. with google.