The first difference to note would be the aggressiveness of DACP which is more than that of #80, used together they remove some decently heavy swirls and bring the shine back up to a nice level. I find that they are both equally user friendly, I would say a middle of the pack rating of 6-7 of 10 in terms of ease, when used with the rotary at about 1500RPM. Personally I like how they both work but the dusting that accompanies DACP is sometimes a pain; #80 does not have the same dusting issues however. Overall I like the Megs polishes and still use them quite a bit, about as much as I use the Menzerna line.