I know this is an old thread, but had the Opti-Coat done to my 14 earlier this week. Looking forward to seeing how it washes after a few days of daily driving it. Glad to see others are happy with it as well.
Recently upgraded from a 94 Cobra to a 14 GT. Love the 14! I really liked the Cobra - it was my first Mustang, however it was ridiculously clean and only had 46k miles on it. Was always nervous about driving it and adding too many miles.
So traded in (dealer gave me a very, very fair offer...