Looks interesting, as I'm looking at alternatives to blogger for my new site. Going down my checklist, you'll support a custom domain and comments (via disqus).
Here's what's left unticked on my checklist...
Image hosting. (Will you host my pictures or do I have to find external server space for them?)
RSS/ATOM feeds.
Multiple writers on a single blog.
Mobile theme.
Here's what's left unticked on my checklist...