Pros - Detail. Detail. Detail. Never heard so much detail - through the entire spectrum
Cons - Pricey
Never have I found an audio component that costs $1000 with benefits as big as that shown by the Audiophilleo. I have not tried using it without the PurePower upgrade (as it is an irreversible upgrade), but the combination of an AP2+PP results in detail I never thought my system had the capability to expose.