Dynamat...Worth The $?

My GenIII Hemi retrofit project is starting to evolve (as these things often do) and while I'm a huge Classic Mopar guy, I gotta say there were benefits to driving a new Challenger that I couldn't deny...a big one being the lack of interior road noise. I see the Dynamat stuff every time I'm in my local parts store. I know it's certainly not cheap, but if laying this stuff down cuts down on unnecessary road noise, I'll pull the pin and make it happen.

Any input/advice is appreciated! Thanks in advance!