If I'd had to rate this directly after first reading it, in my late teens, I would have been impressed enough to have given it 4 or 5 stars.
However, I have since had time to think about the Mishima/samurai/seppuku debacle, and now I'm not so impressed anymore.
Besides general issues that I may have with Mishima's political sentiments, the real seppuku undertaken by Mishima and his friends was a much less romantic undertaking and much more of a horribly messy affair.
In fact, horrific in it's garbled execution, if you'll excuse the pun...
In any case, he obviously fantasized a lot about his coming suicide, and even made a film about it. http://www.youtube.com/watch?v=bO-w-cn-pJM&feature=gv
Yukio deserves a better review for this. Working on it...