Black Cat is a typical shounen manga. While it's never very original, the care-free attitude of the main character results in a loose and enjoying atmosphere thats being kept though most of the story.
Story: The initial setup of the story is very standard: a sharpshooting hero with his weapon-inventing sidekick travel the world to catch criminals and save the innocent. A third team member and a bunch of super villains make the picture complete.
Besides from this typical and predictable storyline, the plot unfolds at a nice easygoing pace and keeps things interesting. The fun makes up for lots.
At the final showdown in the last few volumes however, the generic shounen fights with predictable outcome make up for a unsatisfying ending without any surprises and some unfinished plot lines.
Art: Im no expert in this, but the art is definitly a plus. Great looking characters, clear drawings.
Character: All characters are enjoyable and especially the interactions between them are entertaining. The three main characters make a great team personality-wise. The witty humor fits them well.
Only the emotional depth and background is cliché and doesnt impact the reader.
Enjoyment: I especially liked the daily dealings between the characters and found the story to be promising. In the end however, the outcome was below my expectations and the moral lessons (everyone can better his life) were used too much. Also, the fights were a bit repetitive sometimes.
But I still liked the lightness of most of the volumes.
Overall: Dont expect big plot twist or dramatic emotional buildups. Black Cat's best cards are the laid back, witty characters. Its a joy to see them interact, grow and take care of the obstacles in their way.