The music (only some of it) irritates me. The main singer is really nasally and it's hard to hear what she's actually singing about. It's only a couple of songs though. The melody is nice in most of it.

The animation is pretty well done, though. I'm enjoying Season 4. I watch other Rooster Teeth stuff, so it's a little distracting when I hear the voices of the cast and crew as talent in RWBY. I see their faces, not the characters. I watch the characters just move their computery lips while I just picture the actual face that belongs to the voice saying the lines.