Studio One is the DAW I used to record my last album Accessible Depth, and MUCH of the initial tracking for Joey Stuckey's album MIXTURE was also done using it. I really like using Studio One for music creation - the workflow is SOOOO much easier and intuitive than pro tools [in my humble but accurate opinion!].
So Presonus just announced a FREE version of Studio one to go along with the Artist, Professional, and Producer versions. The kicker is that there's only ONE installer for all the versions [including the Demo Versions].
It's a great way to check out an excellent DAW.
Here's the news release page:
http://studioone.presonus.com/news/studio-one-free/
Here's is the feature list:
http://studioone.presonus.com/free/
...and here's a chart to compare the versions:
http://studioone.presonus.com/what-are-the-versions/