I used to design and manufacture these things.
Typically the motors last a very long time. Easily 10 years. We got stuff used everyday since the 90s still ok.

If there is air compressor and air bags, these usually develop leak after awhile. All the squeezing functions use air.

The cushion foam will slowly get compressed over the years. So what started as comfortable, won't be after some time. The fabric, depends on what quality. Good leather will last forever with care. With some basic research you can quickly find out what fabric they use.

Features and comfort you go try yourself la. Chairs are very individual things as everyone's body is different.

This post has been edited by djtong: Jun 7 2022, 03:01 AM

Sure, I don't mind having a look.
PM me.
Which model?

Can PM me.