I bought this because I needed a deep fry pan. At the same time, I also bought a shallow fry pan, different brand. I have had this pan for a year and a half now and just had to throw it out. During the course of it's life with me, the inside of pan remained in good condition and never let me down when in use. However, after many washes in the dishwasher and just general use, the coating on the outside of the pan chipped off in many places. My other shallow (Tefal) fry pan's exterior purchased at the same time is still in excellent condition. I lay rubber mats between my pans and really care for them. However, due to the chipping and many dishwashes, the aluminium started to deteriorate as if something had eaten into the pan. I've just thrown it out, but am a bit bummed I have to buy another stir fry pan as this one was only in it's second year of life. It did the job, served it's purpose, my only complaint is the exterior deteriorating. I wash my shallow Tefal in the dishwasher and it's all in tact. For this, I give the product 3 stars.