I have self-edited and self-published a few things now. I enjoy the process. I have been happy to publish through Amazon since I have more-or-less full control of formatting. I use Sigil to create and edit the EPUB with cover image and Table of Contents, etc., and Amazon quite happily does the conversion from EPUB to its own format. (EPUB is great. It’s all HTML and CSS, so if you know anything about webpages you can have great fun doing the formatting in EPUB.) Smashwords, on the other hand, until recently perhaps, has insisted on Word submission with minimal formatting control.
I’m something of a perfectionist. Of course I make mistakes, and I’m always learning. I am, I confess, rather arrogant and over-confident about my ability to do all this myself – but at the same time I’m aware that there are many people out there who are far more skilled than I am. Humility is good for the soul…
I like to think I do a good job – and I certainly have fun doing it – but I would expect anyone publishing my work to do it at least as well as I would. I would be quite upset, otherwise.
Francis James Franklin (Alina Meridon) 
I enjoy self-publishing too because of the control I get to have. It is important to keep learning from your mistakes, and yes, humility is good for the soul.
Sigil is good, but I liked how Scrivener formatted my book. But that was when I had an Apple laptop and now I have a Windows laptop, so I’ll be learning all over again.
Now you have a… You Traitor!!! 🙂
I find Windows so frustrating. I bought my first Mac back in 2000 (a blue iBook) because I needed Microsoft Office for work – at the time my main OS was Linux – and I refused to use Windows.
I actually do prefer Mac. But my old Apple laptop couldn’t be updated anymore and it was hard to use. So I started to use my uncle’s Windows laptop. Yeah, I miss Apple but I saved a few bucks 🙂