I've played the PCB at Otakon and since I'm a huge fan of the anime, manga etc I downloaded it right away once I knew there was an arcade game for it.
I have to say honestly its one of the worst video games I've every played in my life. The game's a VERY bad Final Fight clone. The problem is the game is WAY too cheap. Characters do shit for damage, you get swarmed by enemies left and right and your special attacks often don't work. I played the game on MAME with unlimited credits and I just gave up. The boss characters have a way to position themselves on the screen so you get hit and you can never hit them.
The Super Famicom Sailor Moon games are much better and also, much cheaper then the arcade game goes for. I'm a huge fan of the series and I have a lot of the video games they've made with Sailor Moon, but after playing the arcade game, I would never plunk down money for it, even just to show off to other fans that I had something different. It's THAT bad.
I would look for a cheaper game, or if your daughter is a Sailor Moon fan, just look into getting the Super Fami games. Their cheaper, and much better then the arcade game is.