Here are some of the key features of Sudowrite:

1. Personalized writing suggestions: Sudowrite uses machine learning algorithms to analyze your writing and provide personalized suggestions for improvement.

2. Multiple genres: Sudowrite supports multiple genres, including fiction, non-fiction, academic writing, and more.

3. AI writing assistant: Sudowrite can help you brainstorm ideas, generate outlines, and even write entire paragraphs.

4. Writing community: Sudowrite has a community of writers who can share feedback and support each other.

5. Integration with other tools: Sudowrite can be integrated with other writing tools such as Scrivener and Google Docs.

As for alternatives to Sudowrite, here are a few to consider:

1. Grammarly: Grammarly is a popular AI-powered writing tool that provides suggestions for grammar, spelling, and punctuation.

2. ProWritingAid: ProWritingAid offers a range of writing suggestions, including grammar, style, and readability.

3. Hemingway Editor: Hemingway Editor analyzes your writing for readability and suggests improvements for sentence structure, word choice, and more.

4. SmartEdit: SmartEdit is a tool designed specifically for fiction writers, offering suggestions for dialogue, pacing, and character development.

5. Google Docs: Google Docs offers basic spelling and grammar suggestions, as well as collaboration tools for writing and editing with others.

Sudowrite is a powerful writing tool that offers a range of features to help writers improve their craft. However, depending on your specific needs and preferences, you may want to consider one of the alternatives listed above.