I'd say it's definitely worth the money. Whenever I floor it from a complete stop, I would usually get some wheel hop but with the damper installed, it's non-existent. Also i do notice the Auto tranny does shift somewhat smoother, especially at the 1-2 shift (even with zero preload). As long as you have a buddy to help you, it shouldn't be a problem to install the damper as long as you are careful. The only problem is the amount of work space that you have to install the damper. It's really small and you can't afford to make any mistakes or else you might drop one of the bolts or nuts into the engine bay (like i did...
) It took me forever to retrieve the bolt from the engine bay. Now I still need to adjust the damper but i gotta go hunt for the right tools...