dave,
Sorry for the late reply. Yes garware ice cool shield is excellent during day & actually blocks a lot of UV rays & heat. I say this becuase nowadays I need not wear my shades while driving. Its actually that good. I would also say the cooling is great in the car. Temperatures now in kolkata is about 38-39 degrees yet Ive never gone to 3rd notch in AC...just imagine, even in afternoons.
I had got it done for 3500 also. At night though during heavy rains (experienced it just once this season), visibility is slightly impaired though.