The only issue I had with the
ButtKicker Gamer is not the product itself. You see, the
ButtKicker Gamer is intended to be used to
enhance your existing office chair. Together, the
ButtKicker Gamer and your chair form a new system.
The issue is that any system is only as good as the sum of its parts - or as some point out, "a chain is only as strong as its weakest link". When you go to the store to buy a laptop computer, you're not typically considering its aerodynamic qualities. When you buy a car, you're don't typically take the taste of its windshield wiper fluid into consideration. In exactly the same manner, when you buy (bought?) your office chair for use with your PC, you don't take its acoustic properties into consideration.
The office chair I use with my PC is from Sam's, and is a fairly nice 'executive' style chair. Yes, it has artificial leather instead of the real deal, but it has a high back, a good amount of padding and an adjustment lever that will allow me to lock it in its upright position or allow me to lean back. All-in-all, I've been very happy with this chair. Until now. The ButtKicker Gamer fit snugly around the pneumatic lift cartridge, even though the one on my chair is definitely larger than average. However, when the bass starts pushing through the chair, the little adjustment lever I mentioned begins vibrating with a mind of its own and seems to be attempting to leave the chair altogether and start a solo act. I can stop this from vibrating by locking the chair's leaning mechanism and then pushing back to keep the pin-like mechanism held fast and unable to vibrate, but even so, at certain frequencies, other parts of the chair (such as the arms or the bracket that attaches the back to the seat) will vibrate excessively.
I say all of the above to say this: The ButtKicker Gamer is an excellent product, but your results can vary greatly based on the office chair you use with it. If you're in the market for a new office chair anyway, then try to select one that has few parts that could vibrate when your chair is turned into a speaker.