When I installed an induction cooktop, many of my AllClad pots and pans (the Ltd Gray line) which I loved and had collected over many years, were not compatible with the technology. I also inherited my mom's pans as I had convertied her to AllClad! Once I came to terms with the fact I would have give away some pots and replace them, I decided on the D3 because of its high rating. The box arrived, the set went into immediate use, and I've been thrilled ever since.