My Take
Kids need to understand that this is a school blog so their language and style must be formal. Once you have that down, I liked the website. It was a slow start, and most kids didn't use it unless I gave them a topic to blog about, but it gave them some practice with blogging and typing.
How I Use It
I have my students write down their take on class projects after we complete them. What they liked, how they completed it, what grade they think they deserve, what might work better next time, etc. Then I have then create a quick code to the blog site and attach it to their finished projects for an additional look into the creative process.