As bad as Sanctus is at times, he's still better than over half of DMC3's bosses (Gigapede, Geyron, Doppleganger, Leviathan Core, and possible Agni and Rudra. And maybe Hell Vanguard if it even counts as one) and every DMC2 boss outside of Despair Embodied, and that says something. Pummeling him to death with Nero DT is actually quite a satisfying feeling, even more so than Nero PAUNCH in the second round.
Anyway, only halfway through SoS Mode. Things aren't too difficult (Don't know whether to attribute that to DMC familiarity or what) but nothing has gotten frustrating enough to interfere with fun. And DMC4 has that in spades, despite its flaws.
Also, Blitz is the new DMC1 Shadow. I'm just waiting for when they decide to have you fight three of them at once... Might be more of an epic experience for me than fighting four DT'd Hell Vanguards in DMC3 Bloody Palace with Vergil at a pretty high level.
I'm glad things are (obviously) positive here, because outside, people tend to make me feel like shit for liking the game, let alone playing it, and let alone thinking it's actually comparable to DMC3.