Google opinion rewards says that they reward us for our our opinions.thats absolutely true.but ill tell u the most dissapointing thing about it.The main concept is that after some interval of time, there are different surveys available.for each survey we are awarded some google money.the money is not constant.But most frustating thing about this is TIME.it takes a lot of time for another survey to come.moreover the rewards for every survey is too small.the minimum reward for any survey ull get is 3 rs and max is 6 rs.which is very small.Features of this app is we get free rewards by just giving 2 to 3 ques.which is good.but this is usefull only for those people which has strong patience level.So I recommend to the people to go for this app only for time pass.