Well I played the demo and here are my thoughts.
- The game looks and sounds great. I like the art style, the detail, and the sound design is surprisingly excellent. It kind of feels like it was intended for HD consoles.
- Music is alright. I think it's a bit more fitting than the original LoS soundtrack, since it's much creepier. Still a far cry from the Castlevania music we know and love, though.
- Gameplay is OK. I know this is a demo so I'm keeping my reservations. Combat is satisfying, but the entire control feels a little sluggish. I'm not sure if the demo is just VERY poorly optimized and it's a framerate issue I'm seeing, but it's not as tight as I would like.
- Overall it looks fun and I'm probably going to buy it.