I've got a Pair of Chairs with matching Leg Support Stools in the listening room that are quite similar in the design to the Stressless Design.
These were a £1000 (receipt supplied) as a new purchase which I bought used and with a Leather Upholstery in immaculate condition for £100.
Leather is fine as I don't listen in overwhelming heat, also I'm more of a autumn / winter listener for long periods in front of Speakers. Fabric would be suitable if extreme heat is present when listening is occurring.
Cushions don't really remain put on leather, so an anti slip aid will help or go for a Fabric Upholstery.
I've always wanted a Massage Chair seen in Shopping Malls, but it is an absolute luxury and will most likely produce a noise during listening that is a detraction.
The Link shows the idea for a chair, but I would probably pay more to get one to fir my frame size.
https://uk.royaldeals.co.uk/product/massage-chair-full-body-neck-shoulder/B0DGQDQ3JX/