I have Paradigm Studio 100s, and had a speaker shootout and the 850's were here, and they are both very nice looking and sound amazing, compared to the 100's, a fantastic deal... smooth clean and worth every penny of what they charge for them...
I was very impressed with them in fit and finish and SQ.... Until I heard them myself, I had some serious doubts about them.
I highly doubt the Aperions would even come close, but then again, I have never heard them, but I have read about them and from what I have read, I more then likely wouldn't care for them...