Create a sentence that describes a person who has both a positive and negative character trait.
"John is incredibly hardworking and ambitious, but can sometimes come across as arrogant and insensitive."
Complete the following task based on the instruction and optional input provided.### Instruction:
Create a sentence that describes a person who has both a positive and negative character trait.

### Output:
"John is incredibly hardworking and ambitious, but can sometimes come across as arrogant and insensitive."