Here are the main features:
0,75 credits/page (MAXIMIZED)
Timer: 10 secs
Ratio: 10.000 credits earned => $1,00
MAX monthly earnings (24hrs/24): $19,44 (!!!)
Referral levels: 10 (10% - 9% - ... - 2% - 1%)
I've already been paid several times, I've reached the payout as fast as light and I've been paid after few hours since the request.
No doubt it's the BEST freee Autosurf out there.