My FF life stopped at the turn-based ones, so I really only admired the fighting style of characters that go on a jump and land on the enemy dealing a lot of damage, and their whole looks and characters were often great. If you want to experience the basic, not the action, you should try FFIV, which introduced the Dragoon through Kain, one of the main characters. FFIX also has a furry dragoon which I love. Those two are the ones that define the dragoon to me, but I could never be more than someone giving the input for it, while here I could finally truly play as that. In a way, a dream come true.
The things that frustrated me and I can list are
1) There doesn't seem to be a distance or timing to her jump, I just opened it again and let her jump a few times without doing anything, and each jump she moved a different distance at a different time. Sometimes she even double jumps, at either the last minute of her jump, or right at the start, and travels through the entire top of the screen. With it being so random, there's no reading the pattern or learning it, you just hope this time it doesn't hit you.
2) The way she never stops going from side to side is a bit too much, she could have more moves at the edges and center of the screen to give a bit of a rest and an opening to attack. If your dash is supposed to be the drill, and you use it while she's mobile, there needs a downtime move that lets you use the gun. Since the second phase has those saws, you could prepare for it by having her throw one on the first phase while she remains still.
I'd love to comment on the second phase, but only got to it twice, and only lasted for 4ms so I don't know what it does to comment on it.