Hi! I'm planning to change my tint from the 3M ones na free sa casa (FX-ST if im not mistaken) to Vkool OEM 20 series. The 3M medium black tint they gave me was lighter than my other car also with 3M medium black tint (same car sila), which is probably why I feel the heat more inside compared to the other car. I would just like to ask pros and cons of Vkool OEM 20, especially who have this. Is it worth the upgrade? Thank you very much!