Ghost is an open-source blogging platform that offers hosted and self-hosted solutions.
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Pro Self-host & paid Ghost(Pro)-host options
You can download the source code and set it up yourself (just make sure your hosting provider supports node.js). Alternatively, you can use their Ghost(Pro) service to let them host it for you. Paid plans start at $10/mo.
Pro Open source
Anyone can view code of Ghost since it's under a libre/open source license.
Pro Markdown support
Markdown is a plain text formatting syntax designed so that it can be human-readable and easily converted to HTML. Markdown allows HTML code for complete flexibility.
Pro Extremely simple
It only does a few things and it does them well. Unlike WordPress, with which you can build a universe, a blog or anything in between, Ghost is simple.
Pro Theme marketplace
A built-in way to get and set up themes.
Pro Real-time preview
You can see markdown on one side of the pane and the result on the other, while writing.
Pro Custom domain support
Setting up a custom domain is effortless - fill the in the form and change DNS entries. Done.
Themes may be uploaded, as can logos and covers.
Pro Free hosting on Github Pages via Buster
You can host your Ghost blog for free on Github Pages if you are OK with it being turned into a static site. You can use Buster to generate a static site from Ghost that can then be hosted on Github Pages.
Pro Affordable hosting available
There are lots of affordable hosting plans available for Ghost blogs.
Con Self-hosted might be hard to setup
Requires NodeJS and NPM which both come with a lot of dependencies. Also requires editting configuration files manually.
Con Commenting must be added
One needs to edit their post.hbs file and add some code from Disqus in order for commenting to be available.
Con Very immature and buggy
Con Inappropriate terminology in the UI
Despite some community support of having it removed, Ghost still prominently uses the following phrase in the UI: "Display a sexy logo for your publication." This terminology can be considered exclusionary and even inappropriate in a professional environment.
Con Finding Ghost host sites can be difficult
If wanting to host elsewhere, some of the other ghost hosting sites are hard to find, and once found they vary in features and functions. There isn't a single standard of service across the board.