the videos on their website are horrible. so much camera noise you can't get any true indication of how it truly sounds.
past searching has yielded that the magnaflow is not a true plug and play, you have to cut the exhaust after the cats to install the magnaflow catback, and if you have a trailer tow package you have to cut off and reweld on the muffler hanger on one side, it's only intended for non-towing package models. Not a huge deal, but just something else to consider.
I've debated on getting the roush axleback from our 5.0 that we traded cut up and installed on the Sport. Have a muffler shop do the pipes from the cats back to the mufflers, and use the roush muffler/tips off the 5.0 axleback. Since the pipes are a fairly straight shot it shouldn't be too hard. I just don't want to drop the money if it's going to drone or sound ricey, then have the axleback cut up and not able to sell it to another mustang owner.