Your service was excellent but the product isn'comfortable.
1 The back is too vertical. Metal not contured properly.
2 The seat deflates and is extremely hard, and the seat may be too large
3 The lower band is inset to far and makes it uncomfortable to use as a foot rest. 
4 I have received complaints from both male and females. 
5 Doesn't swivel very well. If not occupied the whole stool will try to turn on the tile floor.