Rich,
I have the 5C so I can't/won't comment on the 4C but one of the greatest things about Aperion is their no risk 30 day trial. And they really do mean no risk. They ship the speaker to you at no charge, you hook it up and listen to it for 30 days and, if you don't care for it, you send it back and they pay for the return shipping.
You're right that in this forum you'll probably only hear positive comments about Aperion speakers (for very good reason I might add). But the best way for you to know that they play nicely with your setup is to pull the trigger and try them in your home.
Good luck! I'm sure everyone will want to know what you decide to do and how it worked out.
Joe
If you can't have fun doing it, it's probably not worth doing.