The writing is easy to read, which is a plus (the rating went from 3.7 to 4 stars only because it increased my reading pace). The plotline was planned and executed quite well. It wasn't too hard to guess but I enjoyed how the story led to the killer. Pip was a fun and cute character. She didn't ramble (not until towards the end, so that's okay). Ravi was equally sweet.
Overall, this is a cool YA mystery, though the climax could be trimmed a bit.