yay. HxH is definitely worth your time, really. It is amazing. Though I'm talking about the older one because that's what I've completed. Though I don't think the new one would be any less awesome, haha.
...and here comes the question I always ask - did you start OP? ;;
Haha, it seems long then. Wonder how much time you'll take to complete it. XD; And yes, it is. It is amazing, to be honest. It is a very short compared to OP so I'd advise you watch it first. Only 64 episodes as of now, I think. Watch the new series, btw. The one they started in 2011, I mean. I have the old one and it, although good, doesn't seem complete. The new one is following the manga and probably has all the latest stuff along with better animation.