I had purchased these pans 3 years ago, I cook daily for my family, no issues at all.
Make sure you season your pans well & I think they will last a while.
I am a home cook with many years cooking I have sautéed, cook, fried, eggs, chk cutlets, steak etc no problem, but like any pan you need to take care  of them.
My wife & I purchased many Ninja cookware items we love them.