I'm not too worried about squeaks, they are always fixable. As far as being a pain in the ass. DEFINATELY. All the cuts on my hands and arms help prove that 
After seing how it looks though, it is definately worth it if your dash really bothers you.
And as far as heater core, I only drive the car in the summer
After seing how it looks though, it is definately worth it if your dash really bothers you.
And as far as heater core, I only drive the car in the summer