Important Actors:
Sakurakko club: All the inner senshi's roles were played by members of the Sakurakko club, Sakura group.  Anza and Morino Ayako (First Stage Moon and Mercury) were members.

Nishina Yuri played Beryl, she was a part of Takarazuka, a high class all female acting troupe

Mochizuki Yuuta played Kunzite, he later was the First Stage Tux, King Endymion, and Dracul.  He also was Kamen Rider J and Tyrano Ranger in Zyurangers.

Bad:
Kind of rough in terms of sfx and characters compared to later musicals.  No outers...

Good:
The first musical.  Totally fresh and new.  It's just a bit different from the other musicals simply because it was the first.  Anza is a great Usagi/Moon from the beginning.  It's really dramatic and touching at times while pretty funny at others.