Story (9): The main story arc involves the main characters, Natsu, searching for his parent which is a dragon and Lucy whose mother died on the same day as the disappearance of the dragons. They are joined by their mates a wizard guild in Fairy Tail who have their own stories. The plot is very interesting and improving especially in one of the most powerful story arcs in Fairy Tail, which is the last story arc in the anime. There is also good distribution on the focus of the characters which is required for a show with so many characters.
Art (9): The art is clean and nice and I can't ask for anything else. Its very colorful and smooth as well.
Sound (10): Background music in the show employs different instruments which aren't usually used in music. Its very celtic and somewhat enchanting as well which makes it work for the show's title. Opening and Ending Themes of the shows are also impressive and very catchy. Standouts for me include Snow Fairy (1st OP), Kimi Ga Iru Kara (4th ED), Hajimari no Sora (11th OP), Yell (13th ED) and We're the Stars (14th ED).
Characters (10); Even though some of the characters are very generic, you can't help but love them. Diversity in both physical and personality traits are evident in the characters. Most quirks and running gags of the characters work when delivering their punchlines which is really great.
Overall Fairy Tail is a show worth a watch. It didn't last 175 episodes for nothing. Have some laughs and even experience some sentimental moments during the show. Personally it a great stress reliever for me which is why I give it a 10/10.
