Purchased this to replace the glass top on my GE slide in JS630SF4SS. It’s an expensive part to replace, however, still less than getting a new range when ours is still in great condition. I did a lot of price searching for this part. Sears was one of the lower prices available, maybe could have gotten it for a little less elsewhere but they were the most responsive and helpful with customer service, I felt confident that they knew what they were doing and they guaranteed the part would fit or they’d pay for the return shipping. Shipping was super fast, the glass top arrived in perfect condition. There were no instructions on how to install it. My husband and I figured it out as we took the old one off. It took about an hour and we saved some money by not having someone do it for us. I know not everyone would be able to do that. I think this glass top is better than the original we had, there was a slight warp to the front right burner that would wobble my pans when cooking. This one is just perfect. Besides the frustrations of breaking the old one and having to replace it, I am glad to have this new glass top as it’s better than the original.