Slam dunk is one of the anime which is pretty well known. In my opinion this anime is over hyped with no content to support it. First the story, the story in itself feels a little dull. I said dull because in over hundered episode the story could have been amazing. I will not spoil the story, but trust me this anime have a little content for a 101 episode anime. The matches are long ( episode wise), smallest match I ever seen in this anime was 5 episode long. You feel bored in half way through the anime. The character development feels well paced and character are good. The characters helps put the comedy element to the story.
In the end, the story feels stretched, but it feels a little good because of the character in the story. I would refer this anime if you have nothing to do and want to pass time.