Your body always a little bit in some movement and your overall posture is probalby better if you can't lean on something. If you use this chair for the first few days, you will definitely have sore muscles :)

megaptera

Undisciplined

you get used to it quite quick and I don't have the feeling that I need to relax my back because of the sitting on this chair. 

Eobard

Fitness

The Perils of Sitting

The nice thing about standing desks is that you can adjust. I like to sit as well and don't stand the whole time.

I would argue that this chair is worth more than a standing desk in regards to health. Although quite pricy as well.

https://en.aeris.de/cdn/shop/products/101-STBK-BK-UR01_Aeris-Swopper_glides_standard_black_black_uruguay_black_01_bcf6a79f-d779-4b56-8b8e-29eef0d3b891_500x.png?v=1641302898