That's a nifty tune. It makes me want to kick back in my chair and relax.
I agree that the vocals sound a little out of place. The rest of the music sounds pretty natural and the effect on the vox make them sound a bit funky.
The drums also don't seem to be in the same room as the other instruments. The kick doesn't stand out, but the snare sounds a little odd compared to the rest of the music.