The Brembo's are a good upgrade for just about everyone, unless you drive like an old man, and then they will serve mostly for looks.
If you don't drive hard but want the Brembo's more for looks, just choose a pad better suited for daily driving instead of enhanced braking friction to keep the brake wear and dust lower.
I did my Brembo swap at 13,000 miles and am happy to have done so. Now at 33,000 miles on my 2014, I know the factory 13" brakes could not have performed as well nor held up through the abuse.
2015 Mustang GT PP 401A Black | Roush Supercharger