Fairy tail is one of the best long-running anime series out there. Fairy tail is basically about a group of friends who join Fairy tail, a school for mages, together. Once they settle in and learn the good stuff, They go out on missions to find dragons and protect the world. The fights are obviously awesome because there is a fair bit of magic involved and the animation quality is top-notch. The soundtrack and the storyline are both epic. Fairy tail does not contain a lot of filler episodes. The fillers it does contain are mediocre at best. Alot of these fillers are the 1-boring-story-per-episode kind of filler. I highly recommend to skip most of the filler episodes.
According to some newssites, episodes 219, 220 & 222 will be based upon 'manga specials'. Episode 221 will be the usual filler episode. Hopefully the canon episodes will resume after episode 222.... This 'filler-torture' has taken long enough!