Cashcrate is my favorite site and the one that I've received the most checks from. I've been doing it for about a year now and honestly have never had a problem with it. Cashcrate is one of the most popular GPT sites having 2,000,000+ members. First of all it's free to sign up and it's been around for years. Cashcrate has many types of offers that you can complete for money. There is an entire section of absolutely free offers. This means you fill out surveys and get paid. Simple as that.
Their referral system is great too. When you sign up a person you earn 20% of your level 1 referrals. If you can collect quite a few referrals, that can turn into some excellent income from others doing work! Cashcrate not only pays you 20% of your level one referrals, but they implement a 2 level referral system. That means anyone who signs up under your referrals, you will also earn 10% of their earnings. When a referral gets to the $10 minimum you get an automatic $3 bonus! Not only can you earn all that money, but once you get more referrals, your referral percentage increase up to 30%. This is why Cashcrate is the best GPT site. Your earning potential is unlimited.
Bronze - 0 Active Referrals - 20% First Level, 10% Second Level
Silver - 50 Active Referrals - 25% First Level, 10% Second Level
Gold - 150 Active Referrals - 25% First Level, 15% Second Level
Platinum - 300 Active Referrals - 30% First Level, 15% Second Level
Elite - 500 Active Referrals - 30% First Level, 20% Second Level
When you hit the $20 minimum, your money will then be mailed to you on the 20th of the month following your cash out. This means if you earn $100 in August, you will be receiving your money around the 20th September. If you reach the minimum, your checks are automatically mailed to you and you have nothing to do but EARN!
Update: Cashcrate has added another new feature called Cashcrate Games. You can enter tournaments using the extra points that you are given. If you win, you get even more points that could be traded in for gift cards and other prizes. This is means you're getting payed to play games!
There is also an excellent help forum on Cashcrate and people are there to answer any and all questions. You also have the ability to send messages to them or your referrals. All these reasons make Cashcrate the #1 GPT site there is. There is unlimited help for you and unlimited earning potential.