The cushion is very well made. Is soft and adapts perfectly to the body shape.
I think the described fixed tamping is individual taste. For us it is just as we would expect from such a cushion.
The fixed Stopfuni just also has the advantage that the cushion coincides not immediately in itself.
The size I think is also dependent on the expectations and the individual size. My wife is 175cm tall and for them it is super.
Essentially, they expected her not hurt the knee the next day, and the pool is more relaxed. It's something they achieved so well.
When unpacking it was odorless, thus not chemically pungent smells etc ..
For our part, very recommendable.