Yea here you go. feel free to raise anything. I wanna learn from it as well.

Using
PS4, sound deadening results after hitting 1000km today:
small rain - fading sound, with low ambient music vol at 9 you won't able to hear rain drops.
big rain - "thick" fading sound, very ease on ears.
any speed at smooth highway road - perfect
kepong road - sweet
rough road at low speed < 60km/h - sweet
rough road at high speed-< 80km/h - won't call it sweet but much better compared to without sound deadening.
rougher road at high speed >80 - terrible, won't help
wind noise with sun visor at < 100km/h - perfect
wind noise with sun visor at >= 100km/h - slightly noticeable.
Again I'm not comparing this ranks to premium cars ya.
Pro:
1. music is noticable solid < THIS.
2. Cost-effectiveness: my feeling is in between 85% <= and < 90% (won't get 90%).
3. added some value to the car.
4. all doors are heavier and door closing sound is solid and deep.
5. no rattling sound so far as they re-install almost everything in a nice way. They showed me some proofs about poor installation work especially over-screwed, crooked, exhausted and worn bolts here and there done by the manufacturer factory.
Cons:
1. Disappointed at result of high speed on rough road (the white-ish rough road, I don't know is it called concrete road?), won't really help.
2. adding 30kg to the car.
3. expensive.
Appreciate if can share roughly how much u spend for all these? Workmanship superb? Since sure need peel off door drim, plastic trim all for this installation?