Reply to itunes match...

OK, I've read all the threads here and researched through the apple website. I'm looking for anybody currently using this service as a DJ to give me their thoughts, issues and thoughts about it. From what I understand, it analyzes your itunes library and makes a 256k aac available on all your devices but doesn't delete anything from your library (thus keeping my traktor links, cues and beatgrid) as long as I don't delete those files from my collection. Can anyone with user experience and likes/dislikes chime in about their thoughts please? It seems like I can free up a ton or space with all the files I currently don't use to DJ with. I'm also curious about workflow of tracks that people use from the "cloud" in itunes match.
Thanks in advance for any info/input.