Autocrit is great for editing longer form text. It's less designed for short email and Slack threads. If you are writing a short story or novel it's fantastic. It can also be well used for longer form pieces such as articles and interviews. I would not personally use it to write my content in its first draft. It has a word editor but it's not as fully featured as your typical writing programs.
This tool is extremely powerful for comparing your content to competitors. Additionally, as mentioned previously, the tool is also helpful for finding additional angles or elements to include in content as-you-write.
The support I have received from all MarketMuse staff at each step of the process has been excellent. They are very friendly, quick to assist, and also provide really good training to teach you how to use their product. Additionally, their own blog is a wealth of information regarding different aspects of content marketing, from articles to video interviews.
Grammarly is good at the grammar and spelling stuff but the deeper analysis is lacking. Autocrit and Grammarly make a solid pairing as you can incorporate grammarlies tools with Autocrit for a full package. The same can be done with pro writing aid.
MarketMuse has some necessary as well as unique functionalities for content optimization. There are so other tools in the market which are also doing the same thing as MarketMuse is doing. But MarketMuse is a bit ahead of them because MarketMuse is always developing their software to keep pace with the hard competition. I use MarketMuse because I have got excellent results by using this software.