I like listening to both stereo and multichannel music. That chair above looks really cozy and comfy. Would its high back interfere with my ear's positioning?
The only chairs I have found with high backs that I'd even remotely consider for critical listening have incredibly absorbent foam and covering (ie. very soft recliner covered in suede). But even then I just don't like them because they do interfere with imaging (my obsession). And that often extremely small but critical reflection of sound coming to your ears from the sides and behind in the listening room (assuming 2 channel stereo of course) is also greatly absorbed. I save high back chairs for listening using my IE800 Sennheisers where the chair has no sonic influence whatsoever but the shear comfort enhances the mode and thus my enjoyment.
For serious speaker listening I can't see any reason not to follow the same rules used for seating in the very best classical concert halls. And of course these are all (to my knowledge) medium backed with the head above the tops of them. They do not design them like that just to help the view of the people behind you!