I bought a set of their Professional Granite pans but despite using within the guidelines provided, they have failed after 6 months. I contacted them and explained the problem but they refused to refund or replace the set. They use the excuse that I misused the pans, despite me being a career chef with 10 years experience of using nonstick pans on an induction hob. My advice therefore to anyone looking it this review is.......These pans will work with, but ARE UNSUITABLE FOR, use with an induction hob. Also, in my experience? they will not honour the warranty.