Singing and dancing:
Lots of genki songs like wake up usagi, link, and fire and such.  You get to see Fumina pass the tiara on to Miyuki

Important Actors:

Mochizuki Yuuta plays Dracul.  Also played Tux and King Endymion.  He also was Kamen Rider J and Tyrano Ranger in Zyurangers.  He's also one of the F4 in Hana Yori Dango

Kasahara Ryuji plays Professor Tomoe

Yukimura Yoshiya plays a Death Manechas, he also plays Mandrake and a Hoshino family member.  He's slated to be one of the 4 Kings in the Starlights revision.

Takagai Nao as Uranus.  Lots of people dig her.  Mao Mita as Sailor Saturn, a lot of people like her too. Kanda Eri as Mars and Emi as Jupiter.  Gunji Ayano as Chibi Usa.

Kawasaki Miki as Le Fay.  She also plays one of the moms in Kaguya, background dancer in Shin Densetsu, Esmeroodo in BL, Kaolinite in Mugen Gakuen, and Kunzite in the Starlights musical.

Bad:
Since Preorders and Guide videos are only for special sale, these aren't the original tapes.  It's got about B quality, it's not horrible, but it's not crisp either.

Good:
It's a lot of fun.  Miyuki's 15 only, but she has a lot of energy and makes this musical really fun.

Bonus:
The Dracul guide is one of my favorite bonus videos.  Again, Miyuki has so much energy, and it really shows in this fun background tour of the Dracul making.  Plus, during the fan kansha portion, we see Fumina pass the tiara on to Miyuki, and then they sing Link together, lots of good stuff.