I was skeptical about the raised grooves but after a month of heavy use, there is no sign of wear. This is a product I'll be happy to gift to my children when they decide to take up independence. Lol When using induction, there is no warping nor hot zones. The handle does get hot because there are no sylicone protection. However, when cooking with eggs, be sure the pan is well oiled or you will experience sticking and a nightmare of a cleanup.