^^^What she said. PKO is much more similar to CO than PO.
For me, raw PKO absorbs much better into my skin than raw CO, which tends to sit on top of my skin, leaving me with a greasy-but-still-dry feeling. Since I have a lot of PKO on hand, I'm experimenting with it in lotions that call for CO and a butter, since it is much firmer at room temp than CO.
PKO also feels slightly milder to me in soap than CO does, but only slightly. PKO does have to be soaped quite a bit warmer due to its high melting point. Otherwise, if you soap cool with it, be prepared for false trace (not the end of the world, as long as you are prepared).
PKO can also be a (literal) pain to get out of the bucket because it is SO.HARD. Before I want to use it, I'll put it over the heater vent or on my heating pad. Even when warmed up a bit, I still have to vary between digging, chipping, and carving it out of my big bucket into a smaller container, so that I have smaller amounts ready to go when I want to use it.