Getting colours done

[Karbea]

hello,

I know there are quite a few threads about this but I've a couple of questions.

1. who does it?
2. what is the process? How do they find the colours?
3. how many colours do you get?
4. do you get swatch fabrics at the end of it?
5. was it really worth it?

Thanks,

And do they tell you what styles of clothes suit as well as colours?