I also picked up Sine Mora and find it to be fitting for all the praise. It's beautiful and the numerous boss battles give the combat a satisfying feeling. As someone else said, I don't know what is going on story wise, but it's fun.
I got the revenge by the dad for his son who was shot for disobeying orders to bomb but rescuing the guy from prison (or did I kill him) for raping the girl (who is now a pilot?) has me lost. I'm still early in though.