I've been using Grammarly to enhance my writing for years, and now it has a bunch of AI-powered features. Beyond the usual catching grammar and spelling errors, Grammarly offers tone adjustments, strategic suggestions, and full-sentence rewrites.

Grammarly's new AI writing assistant generates content ideas and assists in drafting emails and documents, and is integrated directly into various platforms, including Gmail, Google Docs, and Microsoft Word, providing real-time suggestions as I write. These integrations have made it easier for me to maintain consistency and professionalism across the different writing tasks I'm faced with on a typical work day. 

While Grammarly excels in refining and enhancing existing text, it's not designed for generating long-form content from scratch. However, for editing and improving drafts, its AI features are must-have. There's a free version covering basic corrections and a premium plan starting at $30/month.