I had to write for a number of clients, and I enjoyed writing about the various topics. The team is great and is full of wonderful people. I also got to work from home, which is awesome.
What I wish was different
The work was inconsistent. In three months I worked for approximately 80 hours. For a recent graduate looking for full-time work, this was unacceptable.
Advice
If you're looking for a full-time (or even a part-time) job, don't go for project-based work. It's essentially freelance and may not be as consistent as you'd like. Otherwise, MM is a fantastic place to work.