I use Publish Flow for my full book production. I purchased a yearly membership when it launched, but it has a monthly plan as well. I use the create function on it for my cover creation for new books (not my existing brands: I use Canva and Affinity for that) and A+ and I find it exceptional. I have also used their formatting and it was good. I do prefer to format in Affinity or Canva, depending on my brand. Considering I was paying $676 for a ghostwriter who was good, but slow, this has streamlined my workflow. Everything else I do myself. For launching, I allow around $1K per book, but that was before I watched Davide's videos last night! Now, I think I'll build a brand I don't need to do that with, or at least minimize it.