I'd heavily suggest reading the manga, it has more developement and gives the characters more depth than the anime did. The anime only has so much time, but they cut off parts that I felt were essential to what made the manga such a masterpiece.
Those cut pieces like Yamashita's other son that gets a wake up call from Ohma, the lovely redhead-Rin, lots of flashbacks that added flavor to the characters that made them more dimensional. By cutting so many pieces out, this entire tourneyment arc feels a bit shallow.
Should you watch it? I'd have to say no, and suggest the manga.
