Update
I hate to bump this thread, however there is a lot of very important information here. I know this isn't new to those in Europe, but it is for those in the US.
Novozymes, the manufacturer of Phosphodiesterase (PDE) has released more info in regards to the enzyme. Also, I have purchased a bag of Ariel All-in-1 to try. More on that later.
"In addition to the stains we pick up on our clothes, there is also an invisible mix of residual skin cells, sebum, soils, and sweat (called body grime) that builds in layers on our fabrics causing persistent malodor and discoloration – challenges that today’s traditional detergents have yet to solve."
"Novozymes Pristine® is a phosphodiesterase enzyme (PDE). It breaks down the invisible layers of body grime and releases dirt and odor that might be trapped - and even prevents it from latching on to fabrics in the first place. That way, clothes get hygienically clean, and are less prone to yellowing, decolorization, and forming that lingering odor. That’s also good news for the planet, since fabrics last longer and thereby won’t be discarded so fast."
Given some of this info, PDE supposedly directly attacks body grime and other substances produced by the body externally. PDE will break these compounds down more than previously possible without the enzyme. This also allows dirt and other soils within the 'body grime' to be removed from the clothes effectively. Since this is an enzyme, this process can occur at lower temperatures, though at a slower rate. Though more importantly, the removal of this 'body grime' occurs in temperatures lower than possible before.
My own experience:
I sweat somewhat bad and use clinical strength deodorant that tends to stick around on clothes. I used one plain-jane Ariel All-in-1 Pod for a load of darks in the GE. Normal cycle, light soil, cool water, and a 1 hour soak. Only additives were 2 Tbsp STPP. The results? KILLER! Issues with BO or deodorant were removed in this low temperature wash. Shirts that are years old smell and look as close to new as possible. I figured I would try it with a load of sheets. Same cycle as before, except with hot water. Same results. A load of shirts, underwear, and socks that I would usually wash in hot, but this time tried in warm? Same results. All of these loads are just using ONE pod.
I couldn't imagine the results in the Kenmore. A significantly better machine than the GE.