I have been attached to this site since long and redeemed my points twice.
First one was flipkart voucher and second one is cash. And I personally trusted this site because I get the redeemed amount without any delay.
Yes, I agreed the earning is pretty slow and you hardly get the approval for surveys. But I believe genuineness of the site is more important than how much time it takes to the threshold level. If you believe in online earning then must recommend this site to work on.