Solid feel to this stainless cooker, much more so than aluminum ones I've had.  Has a better lid seal design than my last aluminum one, too. (It was a 4 quart Presto).  I swear it heats faster.  Scrubs clean more easily than aluminum.  Handle on the off side makes it safer to lift and carry when full (and hot).  And of course no worries about ingesting aluminum, which is not a minor issue for folks with Alzheimers in the family.  Why anyone even makes aluminum cookers anymore is beyond me.  Yes, I see that they're cheaper, but is it worth it?