I loved it, i was watching the anime and then moved for manga (then i watched few episodes of it again and i found it childish... :/ ) , the story was great, the characters development was also wonderful and rewarding, i think juvia should have died and her relationship with grey is very pushed in my opinion and also the ending...
I hate the ending, at this point i dont really rememmber why but when i found out that the author wrote it while taking the plane i was devastated.
Fairy Tail