Had this autofoam done by Kevin a while ago. Friendly and chatty guy.
The other day had the Perdana raised up to change absorbers, so managed to take some pics of the under side.
Pics were taken while standing underneath the car's boot.

Left side (can see the catalytic converter on the bottom right, for position reference)


Right side


Observations :
As the foam expands out of the two chambers, it gets messy. But as it's under the car, no one can see so maybe this is not a big deal.

Noise/vibration reduction : didn't feel any on highway, or going over bumps, or normal driving
Handling/rigidity difference : didn't feel any on corners, on bumps

Maybe it's due to the car only having 2 narrow chambers to fill. As you can see from graphic below. I think the car doesn't have the crossmembers, just the chambers from front to back.

(image from another [more expensive] installer).
Filling up only those narrow places will not block noise, compared to say, putting soundproofing mats all over the car floor.

Someone could take a video inside the car before and after autofoam, then can get a clear idea of any real differences instead of "buttfeel".

Conclusion :
This didn't do anything for me. Wish I could have the seemingly amazing differences some users claimed. But as the TS said, for the price compared to the more expensive installer you can't complain much also.

All the best.

This post has been edited by hspace: Oct 15 2011, 11:36 AM