Has anyone set one these up in their HT, and if so, have any comments on them? Are they worth the money, or just a gimmick? My thought process is: in an apartment setting, where too much audible bass may be a problem, would the addiction of tactile bass be an effective way to add to the HT experience?

M60x2, VP150, M22x2
Sennheiser HD-595
Onkyo TX-SR507, PS3 (40gb)