Sound deadener paint - Is it worth the effort

[jackwalks]

Gday again all,

I am in the slow process of acquiring all the necessary items to do a complete strip out of my GUII. I have just bought some carpet and waterproof underlay, I have also been looking at other peoples rebuilds on here and have paid particular attention to: Replacing of carpet in a GU Patrol & GQ install. I am planning on having this car for a very long time and want to do upgrades for longevity and once only. Supercheap Auto have a paint on sound deadener in a 4L tin, and I am wondering if others have used this or something similar. Is it worth the effort in using produce like this, or am I wasting my time.

Any input and advise will always be greatly appreciated.
(I hope the above links work)