I'm in SEO for a long time and use or have at least tried most content optimization tools out there, including SurferSEO, Cora, POP, MarketMuse, Frase, Outranking, WebSite Auditor, WriterZen, ClosersCopy, etc. While many of these have more features than NeuronWriter, none of them seems to focus on the 80/20 of content optimization the way that NeuronWriter does. You get a clean UI, accurate suggestions in a ton of languages, as well as basic AI features based on GPT-3 Davinci whereas competitors try getting away with GPT-J. Although the limits might seem low to some, you get quality over quantity which is something that AppSumo products often lack.

In summary:

What I love
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- Clean and simple tool that focuses on the 80/20 of content optimization
- Super accurate suggestions (no boiler plate content included like "copyright" fe.)
- Support for many languages
- Quality AI model

What could be better
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- The editor could be improved slightly
- Some frequent entities are missing from suggestions (single word ones in particular)
- Sometimes the simplicity of it can be a drawback

What I'd like to see in the future
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- On-the-fly training of AI model on top 30 results to get improved output
- Get AI to generate a full outline based on entities/phrases frequently used by competition
- Button to instruct AI to rewrite paragraphs from competitor "Examples" preserving the target entity/phrase
- Extention of the suggested words/phrases to include related keywords (fe. pulled from UberSuggest API or just GKWP) instead of just what's found inside competing documents

Overall this is an amazing deal that you should jump on before it's gone!