Just started using it but these are my observations so far:

Pros:
- Simple, easy to use
- Content generated is pretty decent (see a sample below)

Cons:
- The monthly 'usage' section/UI could be better. They have quoted me 90k word limit on T3 but it does not state if it's for long-form or short-form.
- The flow of the sentences could be better, but that happens for all AI-writing tool, you would still need to come in and smoothen out the edges.
- Content generated for niche topics are not as good as the others, but this applies to all the AI-writing tools out there

Sample of Peppertype's AI-generated content:
I've been looking for a tool like this for a long time. I have a lot of copy to write for clients and I have a hard time coming up with new ideas and angles. I've been struggling to get all of my copy out to meet deadlines and Peppertype.ai gave me the boost I needed to get my writing done quickly and effectively. I've been using it for a few days now and I have to say that I'm quite impressed. I'm getting through my copy quickly and having a lot of fun at the same time. Best part is that I'm saving a ton of money as well.