Unless you want to bring out family secrets
Not as much as Americans but still something interesting. For example, you might/might not lose all hairs..
Primarily designed for white ppl but you can try.
I thought Debbie Liu was hired as CEO to solve that
No
You will see several interesting analysis of your physical traits and characteristics, will flag any red flags in serious disease causing mutations and link you to several DNA relatives, so I do think it is worth it
Yes to both. Obviously.
works? yes useful? no