Only at the Bristol show, but I'd rather save any comments until I hear it in store. After speaking to the rep recently, they should be available in about 4 weeks time.
I suppose it depends what sub/sat systems you compare them to. I don't think they'll worry any MK sytems, but they'll be more than a match for anything else based on their spec. Although, theres not a great deal of similar systems around at their price point.....