I heard about this site from youtube. And then I tried to earn something using this site. I spent more than 1 hour and complete 1 test. In return they have to pay me 10$. But after finish this test. It took 2 days and then informed me that you have not earned any thing. I think its a scam.
I like this site. Because its really helpful. I used this site for many times and find best locations. I'm fond of travel and this site is my best companion.