1. Delivery and state top, assembly instructions for very easy, quick to deploy. Material robust, yet after a few weeks of daily use no wear.
2. As in the description of the stool is adjustable in height. With my height (174 cm) perfectly adequate.
3. mobility through the hoop very well, even with heavier falls not to (100 kg).
4. By sitting without back you sit more straight and must abide by muscle power. A "sprawl" in the chair so do not go. Through the tires do not slip on the floor.
5. seating position change always possible given stability even with "edges seats".
Conclusion: On the stool I can sit well without pain and the latent sense of renewed "jetting". The use does not replace but of course the daily exercise and only facilitates sedentary.
For this the stool is from my point of view can only be recommended, especially for the price of less than one hundredth