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
@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.

I look for 3 things.
1. Comfort
2. Comfort
3. COMFORT
I like the Erkornes chairs myself.