I'm enjoying creating with ai and aiwritebooks writes well. It is easy to use, everything you need to do doesn't cost a lot credits either so good value. I've tried Booknova and find aiwritebooks much more finished and offers more options. I may swing between the two on occasion - I have paid for both after all - but I'm really looking forward to doing more with aiwritebooks. The ability to write in a series and even upload a previous book is the real clincher. And the possibility of an audiobook is great. I'll be doing my own uploads though. I like to have a bit more control over the final product.