Tried the demo, was okay but the combat is a bit button-bashey with a jump thrown in and I'm not sure it's for me. I guess I was hoping it was a bit more Shadow Complex exploration but in the demo everything was very highlighted and new paths opened up for you. Granted it was only a short demo.
I've enjoyed what I've played so far and there is a demo on the eshop. Well worth a try imo.
Is Castlevania really as poor as I've read, I've played others but not a huge amount so I'm not averse to it 'not being like the other ones' but I'm looking for a third game to buy for the 4th freebie and I fear my 3ds will be in pieces if I get DKC /rage.