1. What is this?
You get 48 payments, 3% of your deposit each, directly to the Bitcoin address you make your deposit from. That makes 144% of your deposit in total. The payments are made during fourty eight hours period, with one hour interval. The minimum deposit is 0.01 BTC, and there's no maximum. Deposits below 0.01 BTC are considered to be a donation.
You're going to be paying 0.0048 in transaction fees, you realize, per deposit.
Also, use with caution, as this is very similar to
https://bitcointalk.org/index.php?topic=585755.0