What are important features in a listening chair


Been wondering what features are important to you in a listening chair. 

(Besides the drink holder and familiar smell...)
perkri
I've got a shock-absorbing high-speed chair from a SEAL attack boat with a 15" Eminence driver attached under the seat. Bass you can truly feel, but hard on the prostate.
That Gilrmartin Rocking chair is beautiful. It must have cost a small fortune, but to have it tailored to your body makes it worth it. We need more craftsman like that.

All the best,
Nonoise
@dsotm073 - Have you seen the "Pelican Chair"? Looks like it blocks side-wall reflections before they reach you! 
I'm interested in relaxation while listening, so it has always been something akin to or exactly as a stressless design.