I actually miss the swordplay, having not done it in a week or so.
The swordplay reminds me most closely of Punch-Out's style of, dodge, counter, react fighting, except that Red Steel is far, far more forgiving about taking hits than PO was (seriously, this Scott Monroe must be built like a friggin' tank).
And yeah, about the ending: The ending was pretty neat, with having to beat Otori, your sensei, in order to keep him from killing Tokai who was the only one who knew the location of the antidote to the poison that was killing both Otori and Mariko, Otori's daughter. Also, Tokai wasn't the typical "supermegaultrapowerful" villain that I expected to encounter at the end of this game. In fact, he was terrible with a sword, and it was kind of sad when you learned that the only reason he was doing all this was to avenge his father who had wronged the Sato clan and had Otori behead him to save his honor, the same honor which his son, Tokai, went on to besmirch because he blamed the Sato clan for the death of his father. He was just a lost and vengeful little boy who couldn't accept that his father chose an honorable death.
The destruction of the Katana Giri at the hands of Scott was also rather poetic. It symbolized the end of the system of honor and vengeance which was essentially the cause of all the bloodshed to start with.
Seriously, how many games end with having to stop your teacher from killing the main villain in order to SAVE your teacher?
The story started slow, but it ramped up rather quickly. My only wish was that the scene where Sato himself dies would have been more heartfelt, something along the lines of Sato telling Scott that he would have made a good son in law, but that's me projecting my ideas.