4/5 Stars (%80/100)
Strong 4 stars because of a couple of things, otherwise it would get 5 stars from me. I really liked it that's for sure. However, I already mentioned in my previous reviews that the ending was a bit weak and stretched. I'm not going to spoil it obviously but I'm sure you'll get what I mean when you read it yourself (or wait a couple of years for them to animate).
Overall, I think it is a very successful shounen series. It is short compared to others like Bleach or Naruto. The characters are brilliant in my opinion, you could even sympathize with most of the villains. The story is interesting and makes you keep reading. The main reason I started reading this, like many people out there, is the brilliant animation, music and art style of the anime. In short, this volume is a bit weak compared to the others especially 20 and 22. Yet, as a whole, I think it is great and deserves the hype. I'm also a bit sad that it is over, now we have to wait for the new season(s).