Advantages.
1.) You can make big profit in just a short period of time. Can double or triple your investment.
2.) and of course, it does not require a big investment.

Disadvantage.
1.) As much as it is possible to make big profit in just a short period of time, you can lose all your money too in just a short period of time.

The same trading idea applies to this... more risk= potential high return
less risk= less return