I bought the pack and, honestly, I have to give it a 5/10. Here's what I liked and what I didn't like.
Good:
- The revo! batteries sound great.
- An economical package compared to Yamaha's.
Bad:
- Most styles are missing OST parts (piano icon with ---) and a few instrumental parts (drums, pads... the same icon as before).
- Some voices and styles already exist in Tyros 5.
- When switching from one OST to another, some parts have a considerably low volume difference.
Not a bad package, but it can certainly be improved, especially the previous details in the styles.