As a manga, Kuroko no Basuke is not terrible. It has decent artwork and interesting characters. There aren't any pacing issues, which have long plagued the sports manga genre.
As a basketball manga, however, this series is absolute dogshit. The author's amateurish, child-like understanding of the sport is as nauseating as it is unbelievable, considering that he spent 6 years of his life writing about the damn subject.
Even the most casual of sports fans will know who Michael Jordan is. The author STARTS this manga off with 5 characters, all high school freshmen (15 years old), who are undisputedly better than Michael Jordan in his prime. When one of the most important aspects of a sports manga is growth and development, one has to wonder where the author will go from that point. Does he go to a "Buzzer Beater" route, where the characters play against the best competition that the universe can offer in an Intergalactic Basketball League? He might as well have, considering that his characters would (or should, in a moderately realistic world) obliterate any competition that Earth has to offer. What struggles could they possibly face?
But nooooooo. Instead, Fujimaki decides to base his manga around bullshit pseudoscience. Like the "zone," for example. Instead of treating "the zone" like a physiological phenomenon (as most rational, self-respecting adults would), the author transforms it into a stupid, super-saiyan-like "power up" that the characters have to actively train for.
Every player above 180 cm (~ 6 feet) in the manga can dunk like it's nobody's business. Even in the NBA, this is not true. So, Japanese high schools have better athletes than the best basketball league in the world......... cool.
Every face-off against the Generation of Miracles (or teams on their level) develops into a battle of "Who can make the opponent's FG% drop from 100% to 90%?" Those 10 misses per game make a huge difference because these god-like assholes will never miss a single shot unless somebody physically alters the trajectory of the ball.
Because really, who MISSES shots in basketball? Pfft.. as if that ever happens.
Here's an analogy: If this were a boxing manga, it would be like watching Dragonball Z characters duke it out in an insignificant, high school boxing league. "Yea I'm prolly strong enough to blow up entire planets. But this boxing tournament tho... this is what's actually important in life."
At some point you will find yourself unable to continue reading this manga, simply due to sheer absurdity of it.
Unless you know absolutely nothing about basketball (and sports/athleticism in general). In that case, you will probably have a blast and think this review is stupid.