I got my kappa sound deadening kit from Don/Rudeboy at MDMM6, and with lots of help from Bryan (nolanb) and Bobby (lil indian) got the doors done, but didn't have the time at the meet to do the floor and rear wall... Driving home from the meet, frankly, the sound/noise was a bit weird, possibly louder than before even. Worried. I'm guessing now the noise was channeled through the floor somehow causing some strange effects.
Anyway, this past weekend I finally got to do the rest. Took longer than I expected - mostly due to trying to get that pain-in-the-a$$ floor asphalt out. Jeez that was tough and long-winded (and caused much sacrifice to the god of mechanics)

Also, I'd ordered a set of seat heaters and they had arrived on the Friday. So, while the seats and interior were out, I decided to add those and that took another couple of evenings, so finally got everything back together and took my first test drive tonight.
Well, it a nutshell, IT'S GREAT! I drove around with the top down, and even so, the car is noticeably quieter, less thrashy-mechanical sounding, and feels more solid somehow. Even my wife (not a car nut) noticed the difference. I know, I know, everyone says Don's stuff is great - but I figured a lot of that was "the Emperor's New Clothes" syndrome and I really wasn't expecting too much of a difference. I was wrong. This stuff is worth it's weight... <ahem>
With a nod to Siskel and Ebert: RECOMMENDED

*THANK YOU* Don, you da man!
SIDEBAR (Jan'10): If interested in heated seats, see the group buy and install thread at:
http://kappaperformance.com/forum/index.php?topic=3625