This from Network Computing blogger Howard Marks.

http://www.networkcomputing.com/servers-storage/unraid-but-not-unprotected.php

Nice!

 

Short, sweet, and pretty accurate.

 

With the recent write performance enhancements, however, the negatives about write performance are vastly reduced.

Yes, a nice article.  The only mistake I noticed was that he mentioned that unRAID's read performance (and write performance if a cache drive is used) is limited by the drive speed, whereas the bottleneck is actually due to the network.  He also typoed 'Lime' as 'Line' at the end of the article.  Still, its a concise article that hits all the high points of unRAID.