If you are thinking of watching this short show you need to keep in mind that this is mostly a comedy made for the fans of the band. Myself, as a long time fan of them, found it very funny. So, you should watch it if you are familiar with them.

I imagining that someone who lacks this prior knowledge would probably find it lame... As it is clearly NOT a big production and it was made mostly for fan-service.

Being that said the score i put is quite plane as i cannot give a serious review because this product itself wasn't made for it.

As a final point, if you are looking for songs recommendations from this band (which you can find on Spotify), let me leave you here my all time favourite selection: Masquerade // The Umblella of Glass // Vampire // Rhapsody of Darkness // Aristocrat's Symphony.