The Trap Master arc was by no means that great of an arc, but I did enjoy it more than I have enjoyed the other arcs lately. I liked that we got to see so many of the characters throughout the five episodes that made up the arc. I also liked the emotional aspect of Naruto looking up to the old man and then finding out he was the one behind everything. Plus, Naruto looking like his son.
I was never actually worried that Konoha would be destroyed, of course, but I thought the story-line was done well. I'm really excited about how close I am to reaching Shippuden though. I just want to get through the next few episodes!