I've got mixed feelings, they do work, but my Focus ST seats warm up like a heating pad. Nice when you hop in after scraping your windshield and cleaning the snow off your car and you're freezing your ass off. Not as much of an issue as the Mustang gets stored for the winter but sometimes I like driving in cool weather with the windows down.
I agree that a hi/low setting would be better.
"We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin
2012 Kona Blue Mustang GT
Roush Phase 2 625HP Supercharger | Black OTT Stripe | 400A | 5.0L | 6MT | 3.55 | HID | SP | CP | BBP | EP | RVC
Mods: Forget it .... too much to list!