Small, geeky community. Growth will be constrained by the DIY aspect, but that's part of the point.

Pros:

Reminds me of Twitter circa 2007

Cons:

Reminds me of Twitter circa 2007

Micro.blog is the social network that people should be using.

Pros:

An excellent alternative to Twitter or Facebook. Self hosted so you own your content. Awesome community.

Cons:

Limited template choices at the moment

I like the simplicity of the design and the ease at which posts can be made. It benefits from a fun and engaging community without all the nonsense and harassment found with other platforms.