Note that it does not include custom domains or image uploading on the free plan, but you can upgrade for $29 (lifetime), which gets you:
Custom domains (this is time-consuming)
Image uploading (due to the cost of hosting images)
Email subscriber lists (since it gets complicated)
Beta features (since they aren't ready yet)
You can upgrade for $29, flat.
The editing interface is just a textbox where you paste markdown; doesn't seem there's a github integration or anything like that, which is too bad.
Soft paywall for some random guy's blog. Uses 40mb of artisnal javascript to display a basic text document with a few images maybe. Hostile to the open web.