I own the full 60 piece collection. (They also make smaller versions, of 12, 24 and 36 or something around there.) Bought it for about 80-90 € in Spain.
Packed tightly in a tin pan, with double floor. Ok for storage, but not practical for use.
The very first "white" is actually a blending medium.
They are pretty awesome, a bit on the harder side. I noticed weird dryness with the darkest red #192 for instance, but generally they are joy to use with impressive color payoff. They don't come with a sharpener. I sharpen them with Derwent pastel sharpener, with Faber Castell multi size sharpener or with a sanding pad.
I fix finished work with Sennelier soft pastel fixative. Can't compare it with anything else, but works well, and doesn't smell. So that's how I do. You're welcome :)
I will post what I created with these pastels very soon. Stay tuned!