No direct experience here, but the Scosche, with a single din radio will be my second spring upgrade. An MGW shifter will be the first.
I'm getting the single din because there is little if any handy storage in the Mustang, and the single din radio will allow the second din space to be handy storage slot for phones, and such.
Mustang base coupe, V6, manual transmission, Red Candy tint, performance package.
Upgrades: DSS aluminum driveshaft, BMR LCA's, Yukon 3.73 gears, MGW shifter.
Displaying 3.7 fender badges is like telling everyone your wife is "office hot."