Well, it IS quite transparent, which I would expect out of Presonus's better stuff. Plus, I like having the wired remote, because I can drag that around on top of the FIVE and be able to switch monitoring chains super-easily from anywhere on that 54-frame mo'fo.
Extravagant for a smaller setup...maybe. But at the same time, having it "future-proofs" your rig, since you can move to a much wider spectrum of mixers by having the CS+ handle the monitoring "heavy lifting", and that would then let you put together a really smokin' monitor setup that you can keep intact across numerous desk swaps/upgrades.