I think it depends. First-person writing can be very powerful and engaging if done well. It makes the story feel immediate and authentic. However, it can also be a bit restricting if you want to explore multiple viewpoints or have a more complex plot. You might want to consider the nature and scope of your story before deciding.
Yes, it can be a great choice. Writing in the first person allows you to really get into the character's head and emotions. It makes the story feel more personal and can create a stronger connection with the reader. But keep in mind, it might limit your ability to show other characters' thoughts and feelings as vividly.