Hunter x Hunter is one of my favourite anime of all time. I liked every single episode and it was never boring to watch it. The story is always progressing and there are no filler episodes, only some recap episodes.
The characters in this anime are just fantastic, even villains and "evil" characters are so well made that you often sympathize with them. The bond and friendship between the two main characters, Gon and Killua, are so beautifully made. It's really amazing to see these two characters grow and develop during the show.
This anime has many emotional moments that just really hit your feelings, especially during the chimera ant arc, which is my favourite arc in the show.
I have nothing negative to say about Hunter x Hunter, I just truly think it's a masterpiece and I loved every minute of watching it.