The All Clad 7 qt stock pot is the tall narrow version across all their lines. it is pretty much the same diameter as the 4 qt 3qt pans.
I DO like tri-ply for my tall narrow pots: the heat is conducted up the sides of the pan better than pans that are all stainless or have a thick disk on the bottom only...conducting the heat up the sides (the aluminum layers facilitate this...) makes it heat up faster while the layers of stainless help it hold heat. Love this version of their stockpot....the wide ones tend to NOT work as well for trad. stock making as they have a broad suface for evaporation which is not always desirable. BUT, I use my 8 qt for a whole lot of things like soups, steaming things, dutch oven-uses etc. Have the 6, 8 and 12 quart which I like the latter when used with their steamer insert for steaming tamales for our family...
I have bought quite a bit from them with GREAT satisfaction. They have the BEST prices on All Clad bakeware - the 'irregulars' in this are included in the 20% off sale going on right now. I am a huge fan of the 'shallow bakers' (ie, jelly roll pans) in both sizes...they ROCK for roasting veggies, chicken wings and much much more (I line them with parchment to minimize clean up...) as well as the flat rimless cookie sheets.
My real All Clad obsession has been with Copper Core and when not snarking great deals for this on eBay (which are getting hard to find) I have gotten some A+ items from CookwarenMore....no visible signs of defect whatsoever...got the 4qt Chefs Pan with lid in mint condition for a stellar price. I am about to purchase a couple of things (I don't really need but want!) like a 14" fry pan from them which , with the 20% off, they have at stunning prices.
Only 1 weird thing happened with them once: they were 'out of stock' of an item I ordered and said it would ship as soon as it came in...weeks passed and nothing; I contacted them and they were very nice and said they were still waiting..very helpful and friendly. Eventually I got it (shallow baker, it was) and was glad. Didn't mind the wait since not having this item in my kitchen immeadiately was not a deal breaker..
So, I recommended them as a go to vendor...Oh, only thing with seconds...small "S" stamped somewhere on it...usually on the bottom side of the handle or elsewher not too visible...prevents eBay/other resale as if a 1st quality item...