The graphics are extremely robotic and rigid. The static backgrounds make you feel like you are back in the 8-bit days. There is no natural flow to the animations so they just look repeated and unnatural. The photorealistic characters they use are as creepy as a shower scene with the Wiggles. The icons also have a fuzzy quality to them that seems purposeful, but I know the DS is capable of sharper resolution and doesn't need to blur edges to look good.
I think if you have to go back and really concentrate to listen to the music, it does not bode well for its ability to grab and immerse the player. The chime you get every time you complete a task or move from screen to screen makes you want to turn off the sound altogether anyway. I guess they thought so as well as they included a mute feature that affects all sound in the game and not just the music.