Pretty good
Pros: Good sound, graphics, game mechanics ... zooming out for large boss battles was a welcome surprise.
Cons: Repetitive enemies, weapons, missions ... and you can dance around enemy bullets since they don't lead the target at all.
Halfway through, it was getting boring and I wanted to switch it off. But, I decided to keep playing through, not because I was compelled to, but because I didn't have anything better to do. Not exactly a compliment, but I'm being honest here. I give you high marks for the pro's, but the con's kept this from standing out.