When I see the good reviews on here I know they must be fake. This is my experience with Zoosk. Before you sign up you browse and leave a wink for people. Then Zoosk tells you that they have left you a message when in fact it is a message from Zoosk telling you that the person wants more than a wink, but that is from Zoosk not the person... so in order for to send more than a wink you have to sign up.
Once you sign up they charge additonal fees beyond the monthly. Then you have to pay additionally for what they call coins. You are forced to use these coins to interact with people. So even when you are signed up and paying the monthly fees they milk you for these coins.
Thirdly, they tell you in order to be more popular you need to use these coins to raise it.