The Kirkland Signature stainless cookware set I got about 10 years ago sounds like it's an All-Clad clone. It's my favorite set, with 18-8 inside and out, and an inner aluminum core that goes all the way up the sides like the All-Clad is described. Made in Italy, if that makes any difference.
I get the most use out of the 3 qt saucepan. Then the 8 qt stock pot (fairly short and squat compared to others). If I could get another 3 qt covered saucepan, I would, but I don't think the pieces were sold separately and since then Kirkland has moved onto a different design. The new stuff looks good, and is 18-0 on the outside, which means it's induction ready. But it's made in China.
I *think* that Costco is offering a genuine All Clad set for $299 these days. Or maybe it's Cuisinart. In any case, it's nice, but I can't justify that expense when all I'd probably use is the 3 qt saucepan!
The aluminum core to the rim seems especially well suited for gas ranges, which send a fair amount of heat up the sides. In any case, I find that once something has been brought to a boil and equilibrated, putting the the burner on the lowest simmer setting is more than enough to keep the cooking going for most stuff (like steaming veggies or heating soups).