I experimented with Amazon KDP’s upload feature and got a .mobi file. Neat. Did it have a hyperlinked table of contents? No. Did I get an .epub file for other sites? No. I remembered an ebook I read with clean formatting, so I contacted their formatter, Polgarus Studio. The site was clear and professional, and the prices very reasonable.
Marina was fast to respond. Jason was detail-oriented. He provided precise, informative instructions and advice. He knew what could go wrong. In the draft .mobi file, smart quotes got messed up 16 times because of how I put them in the .docx file. Jason easily fixed that. I respect his guidance.
Bottom line: If I did it on my own, I would have made mistakes that cost me sales. Jason and Marina gave me smart, splendid files. You couldn’t pry me away from them. I’ll use Polgaurus Studio again.