To be fair, it's more Lords of Shadow's fault than this 3DS game. I didn't like the Lords of Shadow demo either, but still picked it up hoping it'd get better (it didn't). The whole fool me once... thing.
And I don't care that it's not "Castlevania" or w/e. Slap Castlevania's name onto Vanquish and I'd call it the best Castlevania game in years. Problem is that this new Castlevania developer doesn't make good games full stop.