So right off the bat I have to point out one important thing: this was originally a freeware game that has apparently had a few bugfixes? and localization. Not much has changed from the original state besides the addition of English for the very ignorable plot.
Knowing that, it's much more ridiculous how bad a deal this is technically. Nothing has changed from the freeware state, which raises the question of why should you pay for it.
The game doesn't have selectable resolutions so good luck keeping aspect ratio as you pull the window larger. The original resolution is very tiny as a result of using an extremely old and dated engine, Fighter Maker 2k. On top of that, it doesn't recognize my arcade stick's directional inputs. I suspect it won't register the POV hat as directions, and there's no way to change it. I resorted to Joy2Key; good job, game I paid money for.
Once you get the game running how you want it, there's no training mode to mess around with. You've got "Story" (arcade mode) and versus modes and that's it. There's no sort of tutorial and the manual is a mess. The manual constantly refers to buttons as ABXY instead of something more easily parsed like ABCD, which took some getting used to just to read it.
After jumping into the arcade mode and skipping past most of the translated text because it was immediately noninteresting, I messed around in the actual game itself, and wasn't really impressed there. The attacks are a simple Light, Medium, and Heavy system with an extra button for your assist character, who you also pick at the character select screen. This was a neat idea, but I didn't like the way it felt because the assist character moves around at a sort of lag compared to your character. On top of that, the assist characters are little girls not that much shorter than the other girls you play, so on screen it gets kinda busy and hard to read the situation. The UI in general is underwhelming. The biggest flaw is in the super and assist meters. You require meter in your assist meter to do anything with the assist attacks, but the meter is so small at the bottom of the screen that you have to strain yourself to read it.
It's very clear a lot of work went into animating the game, and the animation is very fluid as a result. Unfortunately the designs leave a lot to be desired, as most are generic anime shlock, with a more adult oriented costume theme (man that final boss was silly looking). The assist characters are all little girls, and the regular characters are plucked from anime stereotypes. Uninspiring and unrelatable, and also not very good for the image of women in video games.
Overall the technical issues on top of the poor UI design and bad choices for sprite design with the assist characters make the game more of a headache to bother with. I played through with one character and I was done. If you want titilation go watch porn. If you want an anime fighting game and don't care about netplay BlazBlue Calamity Trigger just got released on Steam and has actual UI design and works with controllers.