Ok well...
No one wants to burn $1000...
So the way you test things like this and PPC and other methods where you are essentially buying traffic is to test it in small quantities and look at how much profit it made.
If you can afford to risk $25 (and I'm guessing you can if you have $1000), try spending $25 on this platform and see how much you make.
If you turn $25 into $50, then it's a fair assumption that $1000 would turn into $2000, but with paid traffic there is always a ceiling where there is only so much money to be made. So if the smaller $25 test works, try $100, then $250, then $500... Don't ever just throw $1000 at something and hope it works.
This site you are talking about, I've never heard of but this is what I would do.
Other people tried to tell you this but they didn't explain it fully.
Hope this helps