Singing and dancing:
Good songs, nice effects, more capable dancers this time around

Important Actors:

Fumina Hara as the second Moon

Takagi Nao the 2nd Uranus. A very popular Uranus

Asami Yuhka as Neptune, a lot of people associate her to Nao.

Hikari Ono returns in the role of female pirate Loof Merrow (former Starlights, Hawk's eye, Bloody Dracul Vampiru, and Prince Demand (all in the Sera Myu).  She also does other stuff like her self produced Nazo no Punk Lady and Ninja Yell

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

Kawasaki Miki plays one of the jewel ladies

Bad:
Can't think of any

Good:
Excellent story, good jokes, nice songs, very touching.

Bonus: