I know, one would rather read the manga than read a review; therefore I am trying to keep this short to the point.
I really recommend this manga to people who love reading sports.
The general formula for a typical sports manga is that the main protagonist talented in a sport is forced to join/willingly join a club and by the last chap he/she has already become a pro and goes aboard to study that sport on the way winning nationals, becoming school's ace and all.
Now Cross manga is a Manga where the protagonist becomes a manger instead of being the school ace (I mean in normal sports manga). This is the first manga that I ever encountered with such a story. It's different from the sports manga that I read till now and that's the main reason why I recommend this manga to people who love reading sports genre.