Stainless Steel or Hex clad

Help! I am overwhelmed with the options I have. For a wedding present my parents said they would get my wife and I a nice cookware set. They are willing to spend around $600-700. I could maybe talk them into more lol. We love cooking and cook about 6 nights a week and are always trying new meals.

We just have basic non stick Rachel Ray pots and pans right now which have been good but we would like to upgrade to a very nice set that will last a long time and since we cook so much. We also have 2 cast iron pans one small and another big one that we use a lot for various meals and searing meats. My sister and her husband were gifted a hexclad set a little over a year ago and love them so I have been looking into those but I find mixed reviews on them so I would curious to hear more from people that have them. We have been researching various stainless steel brands and have settled on All Clad, which has great reviews and around our price range, Demeyere, a little pricier but looks very nice, and Fissler.

Any help would be greatly appreciated!!