Hmm, I'm not too sure. I don't really mess around with mATX too much
Looks like it has decent reviews. CM also has a very great RMA and Warranty system. My case fan died on my CM case and they shipped me out a replacement, and I had it in a week. Also, the top part of my case had a chipped plastic piece (the hard drive cover on the top of the case, people with a CM 690 II owners will know what I mean) when it arrived and they sent me out the piece for free.